Pharm 1 Flashcards

(143 cards)

1
Q

SNS

A

adrenergic system
fight or flight
receptor cells: Alpha 1 and 2, Beta 1 and 2
Neurotransmitter: norepinephrine

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2
Q

PNS

A

cholinergic system
rest and digest
receptor cells: Nicotinic and muscarinic
neurotransmitter: acetylcholine

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3
Q

sympathetic stimulants
sympathomimetics (adrenergic, adrenomimetics, or adrenergic agonists)

A

increase blood pressure
increase pulse rate
relax bronchioles
dilate pupils
relax uterine muscles
increase blood glucose

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4
Q

sympathetic depressants
sympatholytics (adrenergic blockers, adrenolytics, or adrenergic antagonists)

A

decrease pulse rate
decrease blood pressure
constrict bronchioles

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5
Q

direct-acting parasympathetic stimulants
parasympathomimetics (cholinergic or cholinergic agonists)

A

decrease blood pressure
decrease pulse rate
constrict bronchioles
constrict pupils
increase urinary contraction
increase peristalsis

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6
Q

Adrenergic agonist

A

sympathomimetics
stimulate the adrenergic receptors
4 main receptor sites: Alpha 1 and 2, Beta 1 and 2
Alpha 1
- blood vessels, vasoconstriction, increased blood pressure, increased contractibility of the heart
- eye, mydriasis (pupil dilatation)
- bladder, relaxation
- prostate, contraction
Alpha 2
- blood vessels, decrease blood pressure
- smooth muscle, decrease GI tone and motility
Beta 1
- heart, increase heart contraction, increase heart rate
- kidney, increase renin secretion, increased angiotensin, increase blood pressure
Beta 2
- smooth muscle, decrease GI tone and motility
- lungs, bronchodilation
- uterus, relaxation of uterine smooth muscle
- liver, activation of glycogenolysis, increased blood sugar

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7
Q

adrenergic antagonist

A

sympatholytic
block the adrenergic recptors

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8
Q

adrenergic agonist
- neurotransmitter inactivation

A

inactivation by
- reuptake of transmitter back into the neuron
- enzymatic transformation or degradation
- diffusion away from the receptor
- two enzymes that deactivate the metabolism of norepine: MAO, COMT

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9
Q

classification of adrenergic agonists

A

direct-acting (epinephrine, norepinephrine)
- directly simulates adrenergic receptor
indirect-acting (amphetamine)
- stimulates the release of norepinephrine from terminal nerve endings
Mixed-acting (ephedrine)
- stimulates adrenergic receptors sites and stimulates the release of norepinephrine from terminal nerve endings

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10
Q

epinephrine (adrenaline)

A

nonselective
action
- alpha 1 increases BP
- Beta 1 increases HR
- Beta 2 promotes bronchodilation
-inotropic
- vasoconstrictor
- bronchodilator
contradictions and caution
- cardiac tachyarrhythmias, glaucoma
- hypertension, hyperthyroidism, diabetes mellitus, pregnancy
uses
- anaphylaxis, anaphylactic shock, bronchospasms, status asthmatics, cardiogenic shock, cardiac arrest
side effects
- cardiac dysrhythmias, palpations, tachycardia, hypertension, dizziness, headache, sweating, insomnia, restlessness, tremors, hyperglycemia (stim liver produce more sugar)
drug interactions
-beta-blockers - decrease epinephrine action
-digoxin - can cause cardiac dysrhythmias
Nursing interventions
- monitor BP, HR, and urine output
- report tachycardia, and palpations, avoid when breastfeeding, and cold medicines

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11
Q

Albuterol

A

selective
- acts on beta 2- adrenergic receptors
- promotes bronchodilation
uses
- treats bronchospasm, asthma, bronchitis, COPD
caution
- severe cardiac disease, hypertension, hyperthyroidism, diabetes, renal dysfunction, pregnancy (cat C)
side effects
- tremors, nervousness, restlessness, dizziness
- tachycardia, palpations, cardiac dysthymias
drug interactions
- may increase effect with other sympathomimetics, MAOIs, and increased tricyclic antidepressants
- antagonize effect w beta blockers

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12
Q

nursing process: adrenergic agonist

A

nursing interventions- monitor IV sites frequently when administering norepinephrine or dopamine, monitor ECG for dysrhythmias when adrenergic agonists are given IV

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13
Q

central-acting alpha agonist

A

clonidine
- selective alpha-2 adrenergic agonist
- used primarily to treat hypertension (pretty good at it)
side effects
- headache, nasal congestion, drowsiness, nightmares, constipation, edema, ED, elevated liver enzymes
short half life

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14
Q

adrenergic antagonist

A

block effects of adrenergic neurotransmitter
- block alpha and beta receptor sites; directly and indirectly
types
- alpha- adrenergic antagonist
- beta- adrenergic antagonist
- adrenergic neuron antagonist

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15
Q

alpha adrenergic antagonist

A

drugs that inhibit a response at alpha- adrenergic receptor site
- selective (block alpha 1)
- non selective (block alpha 1 and 2)
action
- promote vasodilation
use
- decrease symptoms of BPH, PVD
- not frequently used

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16
Q

beta-adrenergic antagonists

A

beta blocker actions
- decreases HR and BP
nonselective beta blockers
- blocks beta 1 ( decrease BP and pulse)
- blocks beta 2 ( bronchoconstruction, use w caution w pt w COPD or asthma)
- propranolol HCI (uses- angina, cardiac dysthymia

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17
Q

beta-adrenergic blockers

A

selective beta blockers
- metoprolol, atenolol
- blocks beta1 only
side effects/adverse reactions
- bradycardia, hypotension, dysthymias, heart failure, headaches, dizziness, fainting, fatigue, drowsiness, depression, N/V, diarrhea

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18
Q

adrenergic neuron antagonist

A

block release of norepinephrine
- clinically used to decrease BP
Nursing interventions
- monitor vital signs, report marked changes for example significant decrease in BP, watch for falls, and orthostatic hypertension

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19
Q

cholinergic agonists

A

drugs that stimulate PNS
- mimics acytocoline
cholinergic receptors
- muscarinic receptors (effects smooth muscles, slow heart rate
- nicotinic receptors ( affects skeletal muscles)
types of cholinergic agonists
- direct acting ( acts on receptors to activate tissues response)
- indirect acting (inhibits action of enzyme cholinesterase)

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20
Q

direct-acting cholinergic agonists

A

primarily selective to muscarinic receptors
muscarinic receptors located in smooth muscles
- heart, GI, GU, glands
- metocloprimide (used to increase gastric emptying, treats gasoparistis, nausea and gerd)
- pilocarpine (constrict pupils, treat glaucoma)
- bethanechol chloride (used to increase urination, treats urination retention, pee easily)

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21
Q

bethoanechol

A

urinary retention
side effects
- blurred vision, miosis
- hypotension, bradycardia, cardiac dysrhythmias, sweating, flushing
contraindications
- bradycardia, hypotension, COPD, peptic ulcer, hyperthyroidism

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22
Q

nursing interventions bethanechol

A

BP, heart rate, orthostatic hypotension, listen to breathe sounds rales and crackling, cholinergic crisis (overdoes) - muscle weakness and increased salvation

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23
Q

effects of cholinergic antagonist

A

heart
- large doses increase HR; small doses decrease HR
lungs
- bronchodilation, decrease secretions
GI
- relax smooth muscle tone, decrease motility and peristalisis
Ocular
- dilate pupils
Glandular
- decrease salvation and perspiration
CNS
- tremors and muscle rigidity decreased
GU
- relax detrusor muscle, increase sphincter construction

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24
Q

anticholinergics

A

atropine
- action/use ( increase HR, used for preop to decrease salvation)
side effects/ adverse reactions
- photophobia, headache, blurred vision
- abdominal distention, nausea, constipation, dry mouth and skin, decreased sweating

nursing interventions
- vitals, urine output, bowel sounds (slowing down GI)
- mouth care and eye drops, bedrails, driving
- avoid hot environments
- wear sunglasses

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25
antiparkinsonism - anticholinergics
benzotropine biperiden trihexyphenidyl HCI action - decreases involuntary movement, tremors, muscle rigidity
26
nursing process - atropine
assessment - urine output as urinary retention may occur diagnosis - urinary retention related to atropine planning - pt secretions w decrease before surgery interventions - monitor vitals, intake and output, mouth care, bowel sounds
27
anticholinergic for motion sickness
antihistamine - scopolamine - treats motion sickness, N/V - patch delivers dose for 3 days side effects - tachycardia, hypotension, dry mouth, constipation, blurred vision, flushing, muscle weakness
28
CNS stimulants
ADHD narcolepsy reversal of respiratory destress categories - amphetamines, caffeine (stimulate cerebral cortex, euphoria, alertness) - analeptics, caffeine ( stimulate respiration) - anorexiants (suppress appetite)
29
amphetamines
action - stimulate release of norepinephrine and dopamine - inhibit repuptake of norepinephrine and dopamine side effects - CV: tachycardia, palpitations, hypertension dysrhythmias - Neuro: restlessness, irritability, confusion, euphoria, insomnia, blurred vision GI: anorexia, dry mouth, weight loss, diarrhea, constipation excess used: psychosis
30
amphetamine- like drugs for adhd
demethylphenidate methylphenidate controlled substance schedule II uses - increases attention span and cognitive performance - decreases impulsiveness, hyperactivity, and restlessness dosing - 30-45 min before meals - caffeine to increase effect - no evening or before bed cautions - CVD, HTN, PD, psychosis, hyperthyroidism, seizures - increases effects of oral anticoagulants, barbiturates, anticonvulsant, hypertensive crisis w MAOIs
31
amphetamine- like drugs for narcolepsy
methylphenidate modafinil increases wakefulness in pt w sleep disorders unknown mechanism of action
32
nursing process amphetamine
baseline VS, mental status, height, weight, growth baseline labs planning- hyperactivity will be decreased within 3 days, pt HR and BP with be within normal limits teaching - before meals, no alcohol, monitor weight
33
anorexiants
causes stimulate effect on hypothalamic and limbic areas of brain to suppress appetite no one under 12 side effects CV: Tachycardia, hypertension, palpitations Neuro: seizures nervousness, irritability sexual: ED example: benzphetamine, most commons is phentermine
34
analeptics
primary use: stimulate respiration examples - caffeine, theophylline (asthma), used for neonatal apnea doxapram - used for post anesthesia respiratory destress side effects - (similar to those of anorexiants)
35
sleep disorders
insomnia- fall asleep / stay asleep - more common in females and older pt - non- pharm sleep hygiene first - pharm- sedative hypnotics non-pharm management - wake up at same time - no napping - avoid caffeine, alcohol, and nicotine - no heavy meals - take warm bath
36
sedative - hypnotics
sedatives - treat sleep disorders sedative hypnotics cat - barbiturates - benzodiazepines - non benzodiazepines can be short or long term acting short term at lowest dose no hypnotics in those w severe respiratory disorders general side effects - hangover - vivid dreams and nightmares - drug dependence - drug tolerance - excessive depression - respiratory depression - hypersensitivity
37
barbiturates
long- intermediate- short/ ultrashort - acting restrict to short term - no longer than 2 weeks interactions - alcohol, opioid, other sedative hypnotics - decreases effects of oral anticoagulants, glucocorticoids, tricyclics antidepressant, quinidine short acting - secobarbital intermediate- butabarbitol
38
benzodiazepines
hypnotics - flurazepam, alprozolam, temazepam, triazolam( intermediate sedation), estazolam, quazepam sleep disorders and anxiety - lorazepam and diazepam action - interacts w neurotransmitter GABA to reduce neuron excitability Uses - reduce anxiety, treat insomnia antidote- flumazenil - vivid dreams and nightmares nursing process - assessment ( determine whether the pt has history of insomnia or anxiety - planning - receive hood sleep - observe for adverse reactions, teach about non pharm methods
39
no benzodiazepines
zolpidem action - neurotransmitter inhibition - duration of action is 6-8 hours schedule IV - “4” use - treat short term (less than 10 days insomnia - often used for longer periods
40
melatonin agonists
newest cat ramelteon - not a controlled substance - first FDA approved hypnotic nit classified as a controlled substance - selective targets melatonin receptors to regulate circadian rhythm to treat insomnia - nit been shown to decrease REM sleep - adverse effects - drowsiness, dizziness, fatigue, headache, nausea, and suicidal ideation
41
nursing process: sedative hypnotic
ascertain the pt problem w sleep disturbance sleep deprivation due to anxiety pt will sleep 6-8 hours observe pt for side effects if non benzodiazepines
42
anesthetics
types general (depresses the CNS) - alleviate pain - loss of consciousness local - pain relief in limited area routes - inhalation - IV - topical - local - spinal
43
balanced anesthesia
- a hypnotic given night before surgery - premedication ( w an opioid analgesic or benzodiazepines- example: midazolam) - with an anticholinergic - decreases secretions (atropine) - a short acting nonbarbiturates - propofol - inhaled gas - nitrous oxide and oxygen - muscle relaxant given as needed
44
inhalation anesthetics
nitrous gas (laughing gas) - doesn’t last long provides smooth induction usually combined w - non barbiturate - propofol - strong analgesic- morphine - muscle relaxant - pancuronium adverse effects - respiratory depression, hypotension, dysrhythmias, malignant hyperthermia
45
intravenous anesthetics
droperidol, etomidate, ketamine - rapid onset and short duration of action midazolam and propofol - sedation for minor surgery, can still be responsive to commands adverse effects - respiratory depression, hypotension
46
topical anesthetics
limited to mucous membranes, broken or unbroken skin surfaces, and burns forms - solution, liquid spray, ointment, cream, gel, and powder decreases sensitivity of nerve endings of the affected area
47
local anesthetics
block pain at the site where the drug is given (decrease nerve sensitivity) consciousness is maintained use - dental procedure - suturing skin two groups ester and amides - have very low allergic reaction procaine hydrochloride- dental lidocaine hydrochloride - rapid onset, longer duration bupivacaine hydrochloride 3-10 hours
48
spinal anesthesia
local ejected in the subarachnoid space adults - below first lumbar space children - below third lumbar space side effects - respiratory distress - headache - hypotension
49
spinal column nerve blocks
spinal block - penetration of the anesthetic into subarachnoid membrane between the pia mater and arachnid membrane epidural block - placement of the local anesthetic in the epidural space posterior to the spinal cord or dura mater caudal block - placed through the sacral hiatus saddle block - placed at the lower end of the spinal column to block the perineal area
50
nursing process anesthetics
monitor the post op state of sensorium urine output vital signs
51
epilepsy
seizure disorder resulting from abnormal electric discharge from cerebral neurons characteristics - loss of consciousness - involuntary, uncontrolled movements cause - unknown - second to brain trauma or anoxia, infection, stroke isolated seizures (not epileptic) can occur due to fever, acid base imbalance, alcohol, drugs
52
international classification of seizures
common generalized seizure types - tonic- clonic (grand mal) • most common • generalized alternating muscle spasms and jerkiness - absence (petit mal) •brief loss of consciousness (10 seconds or less) • usually occurs in children common partial seizures - psychomotor- repetitive behavior - chewing or swallowing motions • behavioral changes • motor seizures
53
anti seizure drugs
-anticonvulsants or anti epileptic drugs - are CNS depressants that • stabilize nerve cell membranes • suppress abnormal electric impulses in cerebral cortex prevent seizures but not curative
54
hydantions
phenytoin - contraindications • pregnancy - therapeutic serum level • 10-20 mcg/mL - side effects • gingival hyperplasia, nystagmus, headache, dizziness, slurred speech, ventricular fibrillation, depression, hyperglycemia, thrombocytopenia, leukopenia (low platelets and low WBC), purple glove syndrome, stevens- johnson syndrome drug interactions - increased effects w cimetidine, isoniazid - decreases effects w folic acid, ginko, antipsychotic
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nursing process phenytoin
renal and hepatic functions lab look at drug and herb use pt seizure frequency will lower seizure precautions female pt taking BC
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barbiturates
phenobarbital action - enhances GABA activity uses - tonic clonic, partial, myoclonic seizures, status epilepticus therapeutic serum level - 20-40 side effects - sedation - tolerance discontinuation - should be gradual
57
benzodiazepines
clonazepam - treats absence and myoclonic seizures - tolerance may occur in 6 months diazepam - treats status epilepticus - must be administered IV for status epilepticus - short term effect • other antiseizure drugs must be given during it immediately after administration of diazepam “bridge” - still needs to do more
58
Iminostibenes
carbamazepine uses - tonic clonic, partial seizures - also used for psychiatric disorders, trigeminal neuralgia and alc withdraw therapeutic serum range 4-12 no grapefruit juice
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valproate
valproic acid - uses- tonic clonic, absence, mixed seizures therapeutic range - 50-100 side effects - dizziness, drowsiness, insomnia, diplopia, weakness, GI distress
60
anti seizure drugs in pregnancy
seizures increase during pregnancy anti seizure drugs are teratogenic anti seizure drugs tend to inhibit vitamin K - contributes to hemorrhage soon after birth anti seizure drugs increase loss of folate acid
61
anti seizure drugs and febrile seizure
seizures associated w a fever- children 3 months to 5 years prophylactic treatment for high risk pt phenobarbital- barbiturates diazepam - benzo
62
anti seizure drugs and status epilepticus
medical emergency treatment must begin immediately treatment - IV diazepam -IV lorazepam -followed by phenytoin IV for continued seizures: midazolam, propofol -slow IV admin to avoid respiratory depression
63
parkinson’s disease
imbalance between dopamine and acetylcholine occurs due to degeneration of dopamine neurons excess acetylcholine stimulates GABA Characteristics - involuntary tremors - rigidity of muscles - bradykinesia ( slow movement ) - postural changes ( head and chest thrown forward, shuffling gate, lack of facial expression)
64
parkinson’s disease treatment
non pharm measures - education - steps, rugs in house, increase mobility and flexibility, well balanced diet treatments - anticholinergic (inhibit the release of acetylcholine) - dopamine replacement (stimulate dopamine receptors) - dopamine agonist ( stimulate dopamine receptors) - MAO- B - COMT inhibitors
65
antiparkinson drugs
anticholinergics action - inhibit release of acetylcholine - reduce muscle rigidity and some tremors - minimal effect of bradykinesia examples: benztropine, trihexphenidyl side effects - dizziness, drowsiness, weakness, anxiety, headache, insomnia, paresthesia, restlessness, blurred vision, GI distress, urinary retention
66
anti parkinson’s drugs
dopaminergics - carbidopa - levodopa action - converts to dopamine and increased mobility side effects - fatigue, insomnia, dry mouth, blurred vision, GI distress, orthostatic hypertension
67
dopamine agonist
dopaminergics example: apomorphine action: -stimulates dopamine receptors orphan drug side effects - dizziness, drowsiness, yawning, hallucinations, N/V
68
Monoamine Oxidate B Inhibitors
selegiline action - inhibit MAO-B enzyme that interferes w dopamine side effects - dizziness, headache, impulse control disorder, dry mouth, suicidal, hypertension, ortho hypotension interaction - large does may inhibit MAO-A, an enzyme that promotes metabolism of tyramine
69
catechol- O- Methyltransferase inhibitors
Tolcapone action - gino it COMT enzyme that inactivates dopamine side effects - dizziness, drowsiness, headache, excess dreams, insomnia, hepatic dysfunction Entacapone - does nit affect liver - combo pill w carb
70
alzheimer’s disease
incurable chronic, progressive, neurodegenerative disorder marked cognitive function usually between 45-65 symptoms - mem loss, confusion, unable to communicate - agressive behavior, depression progression leads too loss of mem, logical thinking, and judgment, personality changes, time disoriented
71
acetylcholinesterase/ cholinesterase inhibitors
Rivastigmine action - allow more acetylcholine in neuron receptors - increase cognitive function, slow disease process side effects - dizziness, headache, dry mouth, GI distress, Bradycardia, orthostatic, hypotension, dysrhythmias nursing process - mental and physical abilities mem and judgement pt mem will be improved maintain care vitals
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myasthenia gravis
autoimmune disorder lack of acetylcholine impairs transmission of messages at neuromuscular junctions myasthenia crisis- severe generalized muscle weakness
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acetylcholinesterase inhibitors
over dosing and underdosing similar symptoms -muscle weakness, dyspnea, bradiacardiac, drooling, abdominal cramping myasthenia crisis - caused by under dosing cholinergic crisis - symptoms become worse - caused by over dosing - atropine “antidote” acetylcholinesterase inhibitors - edrophonium - ultra-short acting for diagnosing - neostigmine - short acting - ambenonium - long acting action - increase muscle strength in pt w myasthenia gravis side effects - increased salivation and tearing, miosis, blurred vision, bradycardia, hypotension, GI distress
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Pt unresponsive to acetylcholine inhibitors
prednisone - drug of choice Plasma exchange IV immune globulin IVIG immunosuppressive drugs - azathioprine - need to monitor for leukopenia and hepatoxicity
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nursing process: acetylcholine inhibitors
myasthenia crisis muscle weakness w be reduced in 2-3 days take drug before meals admin in time
76
multiple sclerosis
autoimmune disorder characteristics - remissions and exacerbation - motor: weakness or paralysis of extremities, muscle spasticity, diplopia sensory: numbness and tingling, neuropathic pain, severe fatigue classifications - relapsing remitting - full recovery and residual deficit - primarily progressive - slowly worsening neurologic function with no relapses or remissions - secondary progressive relapsing - progressive w onset w acute relapses with it without full recovery -clinically isolated syndrome- only one flare up
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MS drug treatment
immunomodulators - first line treatment - slows disease progression and prevents relapses immunosuppressants - mitoxantrone (IV) corticosteroids - exacerbatations - reduces edema
78
skeletal muscle relaxants
central acting muscle relaxants - mechanisms of action not fully known - relieves muscle spasm and spasticity - have sedative effect peripherally acting muscle relaxants - dantrolene - decreases muscle spasm pain and increases range of motion side effects - drowsiness, dizziness, headache, nausea, vomiting cyclobenzaprine action - relax skeletal muscles uses - relieves muscle spasms side effects - blurred vision, dried mouth, GI distress, drowsiness, dizziness
79
substance use disorder
factors that play - age/cognitive function - family related - social - individual positive fam relationships help
80
neuro biology
misuse of drugs hits on the reward circuit in our brain drugs mimic our own neurotransmitters related use = tolerance
81
alcohol use disorder (AUD
action - inhibits the effect of GABA short term effects- N/V, headaches, impaired judgment long term- high rates of cancer, liver damage, brain issues alcohol toxicity - life threatening condition that can occur by drinking large amounts of alc over short period of time complications - dehydration, seizures, brain damage
82
treatment of AUD
few seek treatment inpatient and outpt drug-assisted treatment - disulfiram (Antabuse) - with any alc will get really sick - acamprosate (Campral) - can use through relapse - naltrexone (Vivitrol, Revia ) - have to watch for opioid withdraw should be used with therapy also
83
cannabis use disorder
short-term- mem, learning impairment, inability to focus long term - res. issues, exposes to cancer treatment - no meds are currently approved for treatment non-pharm- CBT, MET, may help
84
opioid use disorder
effects - drowsiness, confusion, nausea, constipation - dose-dependent respiratory depression most get it from someone they know treatment - non-pharm drug assisted - naloxone (Narcan) - may have to give more than 1 time - Naltrexone (methadone - long term, tolerance will be low after using this med if opioids are taken while on med they will most likely overdose
85
tobacco use disorder
short term- high HR and BP long term - cancer treatment -cognitive behavior therapy - helps develop new ways of thinking - self help materials - apps related to $$ save if they quit - telephone-based counseling- from own home drug assisted - nicotine replacement - bupropion (zyban) - increases levels of dopamine or ephi, after comfy taper pff - varenicline (Chantix start meds a week before
86
other substance use disorder
cold meds dextromethorphan - euphoria, dissociative effects promethazine- codeine - euphoria and relaxation
87
special needs of pt w substance use disorder
surgical pt post op and during
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psychosis
Loss of contact with reality Theory - Results from imbalance in neurotransmitter dopamine in the brain Characteristics - Difficulty in processing information - Disorganized thoughts, incoherence - Distortion of reality - Delusions, hallucinations, catatonia - Aggressive or violent behavior
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Schizophrenia
Chronic psychotic disorder Symptoms usually develop in adolescence or early adulthood Major category of symptoms - Cognitive symptoms - Positive symptoms- agitation and speech doesn't make sense - Negative symptoms- decrease in function
90
Antipsychotic
Also known as neuroleptics or psychotropics Theory – dopamine imbalance in the brain Many antipsychotics block dopamine receptors Block dopamine – side effects are EPS or parkinsonism Two categories Typical Phenothiazines - block norepinephrine causing sedative/hypotensive effects Nonphenothiazines - block neurotransmitter dopamine Atypical Now are first-line therapy Decreased side effects than typical antipsychotics Adverse reactions Extrapyramidal syndrome Stooped posture, masklike facies, rigidity, tremors at rest Shuffling gait, pill-rolling motion of hands, bradykinesia Acute dystonia Akathisia Tardive dyskinesia Neuroleptic malignant syndrome (rare, potentially fatal) Symptoms: Muscle rigidity, hyperthermia, altered mental status, diaphoresis, blood pressure fluctuations, tachycardia, dysrhythmias, seizures, rhabdo, acute renal failure, respiratory failure, and coma Treatment: stop antipsychotic!, hydration, hypothermic blankets, and antipyretics, benzos, and muscle relaxant
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Typical Antipsychotic
Phenothiazine groups Aliphatic: chlorpromazine Side effects Strong sedation, orthostatic hypotension, moderate EPS Piperazine: fluphenazine, perphenazine Side effects Dry mouth, urinary retention, agranulocytosis, more EPS than other groups Piperidines: thioridazine Side effects Strong sedation, low to moderate effect on blood pressure, few EPS
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Typical Antipsychotics: Phenothiazine
Fluphenazine Action Blocks dopamine receptors in brain Use Manages symptoms of schizophrenia and psychosis Interactions Increase depression when taken with alcohol or other CNS depressants Increased effects with MgSO4, lithium, beta blockers Side effects Sedation, dizziness, headache, seizures Dry mouth, nasal congestion, blurred vision, photosensitivity Urinary retention, sexual dysfunction, GI distress, peripheral edema, tachycardia, EPS
93
Typical Antipsychotics: Nonphenothiazin
Haloperidol Action Blocks dopamine receptors Use Treats psychoses, schizophrenia, attention-deficit/hyperactivity disorder, Tourette’s syndrome Contraindications Narrow-angle glaucoma CNS depression Severe liver, kidney, and cardiovascular disease Blood dyscrasias Haloperidol Side effects Drowsiness, headache, insomnia Dry mouth, blurred vision, photosensitivity Tachycardia, orthostatic hypotension, dysrhythmias Seizures, weight gain Urinary retention, sexual dysfunction Blood dyscrasias, strong EPS, NMS Interactions Increased sedation with alcohol, CNS depressants Increased toxicity with anticholinergics Decreased effects with phenobarbital, carbamazepine, caffeine
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Atypical Antipsychotics
Advantages Effective in treating both positive and negative symptoms of schizophrenia Less likely to cause EPS or tardive dyskinesia Action Block serotonin and dopaminergic D4 receptors Clozapine Use Severe schizophrenic patients unresponsive to traditional antipsychotics Side effects and adverse effect Dizziness, sedation, constipation Tachycardia, orthostatic hypotension Tremors, occasional rigidity Seizures, agranulocytosis Low likelihood of EPS Risperidone Use Manage symptoms of psychosis Side effects/adverse reactions Sedation, headaches, photosensitivity EPS, seizures Dry mouth, weight gain Tachycardia, orthostatic hypotension Urinary retention, sexual dysfunction Low possibility of EPS and tardive dyskinesia Aripiprazole Use Manage symptoms of schizophrenia, bipolar disorder, autism, depression, Tourette syndrome Side effects/adverse reactions Drowsiness, dizziness, headache Insomnia, anxiety, agitation, memory impairment Blurred vision, photosensitivity GI distress, weight gain/loss Tachycardia, orthostatic hypotension, dysrhythmias Seizures, sexual dysfunction Suicidal ideation, NMS Low possibility of EPS and tardive dyskinesia
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Nursing Process: Phenothiazines and Nonphenothiazines
Assessment Assess baseline vital signs Obtain a health history including present drugs Nursing diagnosis Relationship, ineffective related to social withdrawal Sleep pattern, disturbed related to medication adverse effects Planning Patient’s psychotic behavior will improve with medication, psychotherapy, and adjunct therapies Nursing interventions Monitor vital signs Remain with patient while medication is taken and swallowed Observe for EPS Assess for symptoms of NMS Inform patients that medication may take 6 weeks or longer to achieve full clinical effect Caution patients not to consume alcohol or other CNS depressants such as opioids
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Anxiety
Nonpharmacologic treatment Relaxation techniques Psychotherapy Support groups Pharmacologic treatment Benzodiazepines Miscellaneous anxiolytics SSRIs SNRIs TCAs MAOIs
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Anxiolytics
Lorazepam Action Inhibits GABA neurotransmission by binding to specific benzodiazepine receptors Use Anxiolytic, antiseizure, sedative-hypnotic, preoperative drug, substance abuse withdrawal Side effects Drowsiness, dizziness, ataxia, restlessness, weakness Headache, confusion, amnesia, blurred vision GI distress, sleep disturbance, hallucinations Bradycardia, hypotension/hypertension Seizures, suicidal ideation, NMS, respiratory depression Discontinuation Gradually decrease dose over several days Withdrawal symptoms Develops slowly, in 2 to 10 days, and may last several weeks Withdrawal symptoms Tremor, agitation, nervousness Sweating, insomnia Anorexia, muscle cramps
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Nursing Process: Benzodiazepines
Assessment Assess for suicidal ideation Obtain a history of patient’s anxiety reaction Determine patient’s support system Nursing diagnosis Anxiety related to situational crisis Noncompliance related to adverse effects of medications Planning Patient’s anxiety and stress will be reduced Nursing interventions Observe patient for side effects of anxiolytics Monitor vital signs Encourage family to be supportive of patient Advise patient not to drive a motor vehicle or operate dangerous equipment when taking anxiolytics because sedation is a common side effect Warn patient not to consume alcohol or CNS depressant while taking an anxiolytic
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Miscellaneous Anxiolytics: Buspirone
Buspirone (BusPar) Action Binds to serotonin and dopamine receptors May not be effective until 1 to 2 weeks after continuous use Has fewer side effects of sedation and physical and psychological dependency associated with many benzodiazepines Common side effects Drowsiness, dizziness Headache, excitement Nausea, nervousness Interaction with grapefruit juice
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Miscellaneous Anxiolytics: Buspirone
Buspirone (BusPar) Action Binds to serotonin and dopamine receptors May not be effective until 1 to 2 weeks after continuous use Has fewer side effects of sedation and physical and psychological dependency associated with many benzodiazepines Common side effects Drowsiness, dizziness Headache, excitement Nausea, nervousness Interaction with grapefruit juice
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Depression
Etiology Genetic predisposition Social and environmental factors Biologic conditions Pathophysiology theories Decreased levels of monoamine neurotransmitters Norepinephrine, serotonin, dopamine Signs and symptoms Depressed mood, despair, weight loss or gain Loss of interest in normal activities Fatigue, insomnia or hypersomnia Decreased ability to think or concentrate Suicidal thoughts Types of depression Reactive depression - after an event (bre) major depression - disease, loss of interest, worthlessness Bipolar disorder - #1 periods of depression along w mana
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Complementary and Alternative Therapy for Depression
Ginkgo biloba and St. John’s wort Should not be taken with prescription antidepressants Discontinue use of herbal products 1 to 2 weeks before surgery Check with the health care provider before taking herbal treatments
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Tricyclic Antidepressants
Action Blocks uptake of neurotransmitters norepinephrine and serotonin in brain Elevates mood, increases interest in ADLs, decreases insomnia Use Major depression Response occurs after 2-4 wks of drug therapy - increase mood Side effects/adverse reactions Drowsiness, dizziness, blurred vision Dry mouth and eyes, GI distress Urinary retention, sexual dysfunction Weight gain, seizures Sleep-related behaviors, suicidal ideation Orthostatic hypotension, dysrhythmias Blood dyscrasias, cardiotoxicity EPS, NMS Interactions Alcohol and other CNS depressants potentiate CNS depression MAOIs may lead to toxic psychosis, cardiotoxicity Antithyroid drugs may increase dysrhythmias
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Selective Serotonin 
Reuptake Inhibitors
Action Block uptake of neurotransmitter serotonin Do not block uptake of dopamine, norepi & do not block cholinergic receptors (fewer side effects) Uses Major depression Anxiety disorders Obsessive-compulsive disorder Panic disorders Phobias Posttraumatic stress disorder Prevention of migraine headaches
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SSRI
effective for sadness, panic, compulsion E- escitalopram F- Fluvoxamine, Fluoxetine S- sertraline P- paroxetine C- citalopram SSSS = Stomach upset, Sexual dysfunction, Serotonin sydrome, Suicidal thought
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SSRI, Fluoxetine
Action Decreases reuptake of serotonin, enhancing action of serotonin in nerve cells Use Depression, bulimia, OCD, anxiety/panic, PMDD Initial effect: 3-4 wks; therapeutic effect: 4-6 wks Side effects/adverse effects Headache, dizziness, drowsiness, insomnia, weakness, confusion, abnormal dreams, tremors, dry mouth, anorexia, nausea, constipation, sexual dysfunction, electrolyte disturbances, GI bleeding or obstruction, OH, tachycardia, SJS, serotonin syndrome, EPS, stroke, SI
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Serotonin Norepinephrine Reuptake Inhibitors
Action Inhibit the reuptake of serotonin and norepinephrine Use Major depression Generalized anxiety disorder Social anxiety disorder Examples Venlafaxine Duloxetine Desvenlafaxine Side effects Drowsiness, dizziness, insomnia Headache, euphoria, amnesia Blurred vision, photosensitivity Adverse effects Tachycardia, hypertension Angioedema, seizures, suicidal ideation
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Atypical Antidepressants
Action Affect one or two of the three neurotransmitters: serotonin, norepinephrine, and dopamine Use Major depression, reactive depression, anxiety Interaction Do not take with MAOIs and do not use within 14 days after discontinuing MAOIs Trazodone may have a potential drug interaction with ketoconazole, ritonavir, and indinavir that may lead to increased trazodone levels and adverse effects
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Monoamine Oxidase Inhibitors
Action Monoamine oxidase enzyme inactivates norepinephrine, dopamine, epinephrine, and serotonin Use Depression not controlled by TCAs and second-generation antidepressants For mild, reactive, and atypical depression Used less frequently due to adverse reactions Drug interactions CNS stimulants such as vasoconstrictors and cold medications containing phenylephrine and pseudoephedrine can cause a hypertensive crisis Food interactions Foods that contain tyramine Some cheeses, cream, yogurt, coffee, chocolate, bananas, raisins, Italian green beans, liver, pickled foods, sausage, soy sauce, yeast, beer, and red wines can cause a hypertensive crisis Side effects/adverse effects Agitation, restlessness, insomnia Anticholinergic effects Orthostatic hypotension Hypertensive crisis from tyramine interaction
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Nursing Process: Antidepressant Agents
Assessment Assess the patient’s baseline vital signs and weight for future comparisons Obtain a health history of depression episodes; assess for mental status and suicidal ideation Nursing Diagnosis Social isolation related to feelings of sadness Self-directed violence, risk for Planning Patient’s depression will be decreased Nursing interventions Observe patient for signs of depression, mood changes, insomnia, apathy, or lack of interest in activities Monitor vital signs Monitor for drug-drug and food-drug interactions Provide patient with a list of foods to avoid Caution patient not to consume alcohol or other CNS depressant concurrently
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Mood Stabilizer: Lithium
Lithium Use Bipolar affective disorder Action Alteration of ion transport in muscle and nerve cells Increased receptor sensitivity to serotonin Therapeutic serum range 0.8 to 1.2 mEq/L Serum lithium levels greater than 1.5 mEq/L may lead to toxicity Also need to monitor sodium levels Has a calming effect but may cause some memory loss and confusion Side effects/adverse reactions Headache, drowsiness, dizziness, blurred vision Restlessness, tremors, memory impairment Dry mouth, metallic taste, GI distress Hypotension, dysrhythmias Edema of hands and ankles, dehydration Increased urination, blood dyscrasias, NMS Serotonin syndrome, nephrotoxicity Interactions Increased lithium level with Thiazides, methyldopa, haloperidol, NSAIDs, antidepressants, theophylline, phenothiazines Decreased lithium level with Caffeine, loop diuretics
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Nursing Process: Lithium
Assessment Assess for suicidal ideation Assess for baseline vital signs Obtain health history and drug history Nursing diagnosis Injury, Risk for Coping, Ineffective related to manic behavior Planning The patient’s manic-depressive behavior with decrease Nursing interventions Observe patient for depression, mood changes, insomnia, apathy, or lack of interest in activities Monitor vital signs Monitor lithium levels Check cardiac status Advise patient to avoid caffeine products Advise patient to maintain adequate sodium intake
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Inflammation
Protective response to tissue injury and infection Inflammatory phases Vascular phase Occurs 10 to 15 minutes after injury Associated with vasodilation and increased capillary permeability Occurs when fluid, blood elements, leukocytes, and chemical mediators (histamines, kinins, prostaglandins) to accumulate at the injured site Delayed phase Leukocytes infiltrate inflamed tissue Cyclooxygenase (COX) enzyme Converts arachidonic acid into prostaglandins (which cause inflammation and pain at tissue injury site) Has two enzyme forms: COX-1: protects stomach lining and regulates blood platelets COX-2: triggers inflammation and pain
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antiinflammatory drugs
Antiinflammatory drug groups Nonsteroidal antiinflammatory drugs (NSAIDs) Corticosteroids Disease-modifying anti-rheumatic drugs Antigout drugs
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NSAIDS
Action Inhibit the enzyme COX which is needed for biosynthesis of prostaglandins Effects Analgesic effect Antipyretic effect Inhibit platelet aggregation Mimic effects of corticosteroids but are not chemically related Most often used for musculoskeletal conditions First-generation NSAIDs Salicylates Para-chlorobenzoic acid derivatives Phenylacetic acids Propionic acid derivatives Fenamates Oxicams Second-generation NSAIDs Selective COX-2 inhibitors
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Salicylates
Aspirin (acetylsalicylic acid) (ASA) Action Prostaglandin inhibitor; inhibits the COX enzyme Antiinflammatory, antiplatelet, antipyretic effects Therapeutic serum salicylate level 15 to 30 mg/d
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Lab/Food/Drug 
Interaction of Salicylates
Lab Increase PT, bleeding time, INR, uric acid Decrease cholesterol, T3 and T4 levels Foods containing salicylates Prunes, raisins, licorice Certain spices such as curry and paprika Drugs Increased bleeding with anticoagulants and other NSAIDs Risk for hypoglycemia with oral antidiabetics Increased gastric ulcer risk with glucocorticoids Decreased effects of ACE inhibitors, loop diuretics, probenecid Salicylate effects are decreased by corticosteroids Side effects/adverse reactions Dizziness, drowsiness, headache Tinnitus, hearing loss GI distress, bleeding, ulceration Thrombocytopenia, leukopenia, agranulocytosis, hemolytic anemia Hepatotoxicity Hypersensitivity/OD: Tinnitus, dizziness, bronchospasm Do not take with other NSAIDs Avoid in last trimester Avoid in children with flu-like symptoms – may cause Reye syndrome
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Nursing Process: Salicylates
Assessment Determine patient’s medical history Obtain a med/drug history Nursing diagnosis Injury, Risk for Pain, Chronic related to tissue swelling from injury Planning The patient’s inflammation will be reduced within 1 week Nursing interventions Monitor serum salicylate level (if on high doses) Observe the patient for evidence of bleeding Advise patient not to take aspirin with alcohol or warfarin to prevent increased bleeding Instruct patient to discontinue aspirin approximately 7 days before surgery to reduce risk of bleeding Warn parents not to give aspirin for virus or flu symptoms to children to avoid risk of Reye syndrome Educate parents to call the poison control center immediately if a child has taken a large or unknown amount of aspirin Inform patient that aspirin tablets can cause GI distress
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Para-Chlorobenzoic Acid
Action Inhibits prostaglandin synthesis Use Rheumatoid arthritis, osteoarthritis, gouty arthritis Side effects/adverse effects Dizziness, headache, weakness GI distress and bleeding Sodium and water retention -> Hypertension
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Phenylacetic Acid Derivatives
Action Inhibits prostaglandin synthesis Use Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, and pain Minimal to no antipyretic effect Examples Ketorolac Oral, IV, IM, intranasal Efficacy equal or superior to opioids Diclofenac Oral or topical
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Propionic Acid Derivatives
buprofen Most widely used NSAID OTC Action Inhibits prostaglandin synthesis Use Pain, osteoarthritis, rheumatoid arthritis Side effects Drowsiness, dizziness, headache, confusion, insomnia, dreams Gastric distress and bleeding Tinnitus, dysrhythmias, nephrotoxicity, blurred vision, edema Drug interactions Increased bleeding with warfarin Increased effects with phenytoin, sulfonamides, warfarin, cephalosporins Decreased effect with aspirin
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Nursing Process: Ibuprofen
obtain drug and herbal history assess for GI distress observe pt for bleeding gumd, report ant GI issues, no alc
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Fenamates and Oxicams
Fenamates Example: meclofenamate Use: For mild to moderate pain/arthritis Oxicams Examples: piroxicam and meloxicam Indicated for long-term arthritic conditions Long half life; typically dosed once daily Well tolerated; lower incidence of GI distress
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Selective COX-2 Inhibitors
Action Selectively inhibits COX-2 enzyme without inhibition of COX-1 2nd generation NSAID Use Osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, pain, dysmenorrhea
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Corticosteroids
Action Control inflammation by suppressing or preventing many of the components of the inflammatory process at the injured site Use Arthritic flare-ups Not the drug of choice for arthritis because of their numerous side effects Discontinuation Taper off over 5-10 days if it has been used long-term
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Disease-Modifying Antirheumatic Drugs
Types Immunosuppressive agents Immunomodulators Antimalarials Use Alleviate symptoms of rheumatoid arthritis when other treatments fail Osteoarthritis Severe psoriasis Crohn disease, ulcerative colitis
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Antigout Drugs
Colchicine Action Inhibits migration of leukocytes to inflamed site Alleviates gout symptoms Side effects GI distress Taken with food to avoid GI distress Contraindications Severe renal, cardiac, or GI problems Uric acid biosynthesis inhibitors (febuxostat, allopurinol) Action Decreases uric acid synthesis and lowers serum uric acid levels Prophylactic; prevents gout attacks Side effects Dizziness, headache, dry mouth, GI distress Arthralgia, pruritus
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Nursing Process: Allopurinol
Assessment Assess serum uric acid value for future comparisons Nursing diagnoses Tissue integrity, Impaired related to inflammation of the great toe Pain, Acute related to tissue swelling Planning Patient’s pain will be controlled without side effects Nursing interventions Record urine output Monitor lab tests for renal and hepatic function Instruct patient to increase fluid intake to increase drug and uric acid excretion Advise patient to have a yearly eye exam as visual changes can result from prolonged use of allopurinol
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Uricosurics
Action Increase the rates of uric acid excretion by inhibiting its reabsorption Use Chronic gout Example Probenecid Usually given with colchicine Side effects Flushed skin, fever, dizziness, headache Blood dyscrasias Avoid aspirin as it inhibits action of probenecid
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Nonopioid Analgesics
less potent mild to moderate pain effective for dull, throbbing pain of headaches, muscles aches and pain action site - PNS at pain receptor sites
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NSAIDs
OTC NSAIDs Aspirin Ibuprofen Naproxen Action Analgesic Antipyretic Antiinflammatory effects
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Acetaminophen
Acetaminophen is not an NSAID Uses Muscular aches and pain, fever No anti-inflammatory properties Maximum dose 4 g/day If taken frequently 2 g/day Side effects Headache, insomnia Anorexia, nausea, vomiting, constipation – low incidence Rash
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Opioid Analgesics
Use Moderate and severe pain Action site Act on CNS Suppress pain impulses Suppress respiration and coughing by acting on respiratory and cough centers in the medulla Many opioids possess antidiarrheal effects
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Opioid Analgesics: Morphine
Use -> moderate to severe pain Antidote -> naloxone Route -> PO, SC, IM, IV, rectal Side effects/adverse reactions Drowsiness, dizziness, euphoria, confusion, depression, Miosis, blurred vision GI distress, flatulence, constipation Orthostatic hypotension, weakness Urinary retention Psychological dependence Respiratory depression
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Nursing Process: Morphine
Assessment Determine drug history and check for drug allergies Assess the type of pain, location, and duration before giving opioids Nursing diagnoses Pain, Acute related to surgical tissue injury Breathing Pattern, Ineffective related to excess morphine dosage Planning The patient’s pain will be reduced or alleviated within ____ time (depending on route) Nursing interventions Administer morphine before pain reaches its peak to maximize drug effectiveness Monitor vital signs frequently to detect respiratory changes Check for pupil changes and reaction Have naloxone available as an antidote to reverse respiratory depression if morphine overdose occurs
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Meperidine
Use Primarily effective in GI procedures Preferred to morphine during pregnancy Route: PO, IM, IV Side effects Less constipation and urinary retention than morphine Hypotension Caution with large doses in older adults and patients with advanced cancer Neurotoxicity -> nervousness, agitation, irritability, tremors, seizures Not for long-term use
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Hydromorphone
For moderate to severe pain Can be PO, rectal, SC, IM, IV Analgesic effect is approximately six times more potent than morphine Fewer hypnotic effects and less GI distress than morphine Monitor respirations closely
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Side Effects, Adverse Reactions, 
and Contraindications of Opioids
SE/AR Respiratory distress Orthostatic hypotension, drowsiness, dizziness, confusion, weakness Constipation Miosis Urinary retention Tolerance, dependence Contraindications Head injuries Respiratory distress/asthma Shock/Hypotension
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Adjuvant Therapies
Adjuvant therapy Usually used along with a nonopioid and opioid Developed for other uses but found to be beneficial for pain Adjuvant analgesics Anticonvulsants - gabapentin Tricyclic antidepressants - amitriptyline Corticosteroids Antidysrhythmics - mexiletine Local anesthetics – lidocaine patch
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Opioid Antagonists
Action Blocks receptor and displaces opioid Use Antidote for opiate overdoses Reverse effects of opiates including respiratory depression, sedation, hypotension Example -> Naloxone (Narcan) Side effects/adverse effects Sweating, flushing, agitation, dyspnea Hypo/hypertension, tachycardia Nausea, vomiting Elevated PTT, bleeding Reversal of analgesia Nursing interventions Monitor vital signs and bleeding continuously
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Migraine Headaches
Characteristics Unilateral throbbing pain Nausea, vomiting, photophobia Can be with or without aura Lasts hours to days Triggers Cheese, chocolate, red wine, aspartame, fatigue, stress, monosodium glutamate, missed meals, odors, light, hormone changes, drugs, weather, too much or too little sleep
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Cluster Headaches
Characteristics Severe unilateral non-throbbing pain Usually located around eye Occur in a series of cluster attacks One or more attacks every day for several weeks Not associated with an aura Do not cause nausea and vomiting More common in males
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Migraine Headaches Prevention
Beta-adrenergic blockers Propranolol Atenolol Anticonvulsants Valproic acid Gabapentin Tricyclic antidepressants Amitriptyline Imipramine Management Analgesics Aspirin with caffeine, acetaminophen NSAIDs: ibuprofen, naproxen Opioid analgesics Meperidine, butorphanol nasal spray Ergot alkaloids Dihydroergotamine mesylate Selective serotonin1 receptor agonists Sumatriptan, zolmitriptan