CNS drugs 2 Flashcards

(53 cards)

1
Q

antipsychotics

chlorpromazine (thorazine) indications

A

schizophrenia
manic phase of bipolar disorder
nausea/vomiting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

antipsychotics

chlorpromazine (thorazine) administration

A

IV, IM, PO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

antipsychotics

chlorpromazine (thorazine) action

A

blocks post synaptic dopamine receptors in the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

antipsychotics

chlorpromazine (thorazine) contraindications

A

hypersensitivity
alcohol withdrawal
bone marrow suppression
thyroid, cardiac, liver, respiratory disorders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

antipsychotics

chlorpromazine (thorazine) adverse effects

A
tardive dyskinesia, akathisia
constipation, urinary retention
tachycardia, arrhythmia
rash, photosensitivity
blurred vision, dry mouth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
antipsychotics 
chlorpromazine (thorazine) interactions
A

CNS depressants: increased sedation
antacids/antidiarrheals: space 2 hrs (poor absorption)
antiseizure drugs: decreased blood levels of antiseizure drugs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
antipsychotics 
chlorpromazine (thorazine) interventions
A
give beta blocker if tachycardic
acute dystonia: give IV diphenhydramine 
give IV dantrolene if hyperthermic
keep client recumbent for 30 min following IV dose
monitor vitals, ECG, potassium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

antipsychotics

chlorpromazine (thorazine) pt teaching

A
take with food to prevent GI effects
notify provider of involuntary movements
urinate before dose
use sun protection
report sudden fever immediately
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

mood stabilizers (lithium) pregnancy category

A

category D (teratogenic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

mood stabilizers (lithium) indications

A

mania, especially in bipolar disorder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

mood stabilizers (lithium) action

A

alters sodium transport in nerve and muscle cells

inhibits release of norepinepherine and dopamine, but not serotonin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

mood stabilizers (lithium) contraindications

A
pregnancy/lactation
renal insufficiency
decreased serum sodium levels
angioedema 2/2 ACE inhibitors
seizure disorders
suicidal ideation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

mood stabilizers (lithium) adverse effects

A

muscle weakness, goiter, hypothyroidism
drowsiness, headache, confusion
polyuria, GI distress
toxicity! narrow therapeutic range

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

mood stabilizers (lithium) toxicity s/s

A
nausea
fine tremor progressing to coarse tremor
seizures
coma
death
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

mood stabilizers (lithium) interactions

A

NSAIDs (except aspirin), tetracyclines, diuretics: increased risk for toxicity
phenothiazine antipsychotics (Haldol): increased risk for dyskinesias, urinary retention
ACE inhibitors: may increase lithium levels and cause toxicity
antiarrhythmics: risk of arrhythmias

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

mood stabilizers (lithium) nursing dx

A

excess fluid volume r/t urinary retention 2/2 drug therapy

risk for poisoning r/t lithium toxicity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

mood stabilizers (lithium) interventions

A

monitor I&O, weight, thyroid studies, renal studies, glucose levels, electrolyte levels
check lithium level 2x weekly for first 2 months, then every month as needed
report low urine specific gravity, which may indicate diabetes insipidus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

mood stabilizers (lithium) pt education

A

take with water, food to minimize GI upset
narrow therapeutic window; recognize s/s toxicity/OD
carry medical identification at all times

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

seizure disorder

A

loss of consciousness with muscle twitching and mild alterations in consciousness with repetitive blinking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

epilepsy

A

a brain disorder with particular patterns of seizures

treated with anticonvulsants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

3 ways anti-epileptic drugs work

A
  1. decreasing the rate at which sodium flows into the cell
  2. inhibiting calcium flow into the cell through specific channels
  3. increasing the effect of the neurotransmitter GABA
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

focus

A

a group of neurons exhibits coordinated, high-frequency discharge
caused by trauma, tumor, hypoxia, genetics
can spread to other areas of the brain and cause seizure activity

23
Q

seizures may result from

A
  1. low levels of GABA

2. high levels of glutamate

24
Q

drugs that potentiate GABA action

A

barbiturates

benzodiazepines

25
drugs that suppress sodium influx into cells
dilantin | depakote
26
drugs that suppress calcium influx into cells
succinimides
27
phenytoin (dilantin) pregnancy category
category D (teratogenic)
28
phenytoin (dilantin) indications
partial seizures | tonic-clonic seizures
29
phenytoin (dilantin) administration
PO, IV
30
phenytoin (dilantin) action
may stabilize neuronal membranes and limit seizure activity either by increasing efflux or decreasing influx of sodium ions across cell membranes in the motor cortex during generation of nerve impulses
31
phenytoin (dilantin) contraindications
``` pregnancy bradycardia or heart block allergy to hydantoins seizures 2/2 hypoglycemia renal/hepatic disease alcohol use disorder respiratory dysfunction ```
32
phenytoin (dilantin) adverse effects
``` drowsiness bradycardia, shock blurred vision, thickening of facial features gingival hyperplasia agranulocytosis toxic hepatitis lupus, osteomalacia ```
33
phenytoin (dilantin) interactions
oral contraceptives, acetaminophen, corticosteroids: decreased effectiveness diazepam, isoniazid, valproic acid: increased levels of phenytoin warfarin, lithium phenobarbital, carbamazepine: can decrease phenytoin levels
34
phenytoin (dilantin) interventions
``` taper gradually to avoid w/d monitor for rash and d/c monitor CBC, BMP, hepatic panel, phenytoin level monitor for cardiac toxicity giving IV maintain seizure precautions vitamin D and calcium supplements ```
35
phenytoin (dilantin) pt education
regular dental checkups and good dental hygiene with soft toothbrush notify if rash occurs do not stop taking abruptly
36
valproic acid (depakote) indications
all seizure types bipolar disorder migraine headache
37
valproic acid (depakote) action
unknown; thought to modulate inhibitory ntx GABA
38
valproic acid (depakote) pregnancy category
category D (teratogenic) give folic acid if pregnancy occurs to prevent neural tube defects
39
valproic acid (depakote) contraindications
``` renal/hepatic impairment other anticonvulsants thrombocytopenia hyperammonemia pregnancy ```
40
valproic acid (depakote) adverse effects
``` hepatotoxicity birth defects pancreatitis headache, ataxia blurred vision, tinnitus infection ```
41
valproic acid (depakote) nursing interventions
monitor bleeding time, platelet count give with food monitor blood ammonia levels, serum amylase, LFTs ensure client takes lowest effective dose
42
valproic acid (depakote) pt education
report bleeding, bruising, rash, decreased LOC, jaundice, anorexia take with food inform provider if plan to become pregnant do not mix oral syrup with carbonated drinks
43
valproic acid (depakote) black box warning
abdominal pain, n/v, and anorexia may be symptoms of pancreatitis that requires immediate medical evaluation
44
carbamazepine (tegretol) indications
partial seizures tonic-clonic seizures mood stabilizer in bipolar disorder reduces pain of trigeminal neuralgia
45
carbamazepine (tegretol) administration
PO
46
carbamazepine (tegretol) action
thought to stabilize neuronal membranes and limit seizure activity by either increasing efflux or decreasing influx of sodium ions across cell membranes in the motor cortex during generation of nerve impulses
47
carbamazepine (tegretol) pregnancy category
category D (teratogenic)
48
carbamazepine (tegretol) contraindications
``` pregnancy absence/myoclonic seizures hematologic disorders HF hepatic impairment MAOIs in past 2 weeks hypersensitivity to TCAs ```
49
carbamazepine (tegretol) adverse effects
``` visual disturbance, headache, ataxia, seizure exacerbation decreased blood cell production skin rash (stevens-johnson syndrome) photosensitivity albuminuria, glycosuria ```
50
carbamazepine (tegretol) interactions
grapefruit juice: increases plasma levels erythromycin, isoniazid, antiretrovirals, valproic acid, verapamil, loratidine, MAOIs: increased plasma levels phenytoin, barbiturates, rifampin, theophylline: decreased plasma levels lithium levels increased oral contraceptives, anticoagulant effects decrease
51
carbamazepine (tegretol) may cause a false ______
false negative pregnancy test
52
carbamazepine (tegretol) interventions
gradually increase dose to prevent CNS effects give as much of dose at bedtime as possible to minimize daytime side effects monitor CBC, WBC counts monitor for skin rash
53
carbamazepine (tegretol) pt education
sun protection CNS effects should decrease report fever, rash, sore throat, bruising take with meals to reduce GI distress