test 4 Flashcards Preview

pharm > test 4 > Flashcards

Flashcards in test 4 Deck (48):
1

sympathomimetic

adrenergic

2

Epinephrine, as an adrenergic (sympathomimetic) drug, produces which therapeutic effect?

increased heart rate and contractility

3

The physician has ordered dopamine to treat the patient’s hypovolemic shock secondary to severe blood loss. For the medication to be effective, the physician must also order

fluid replacement

4

When assessing for cardiovascular effects of an adrenergic (sympathomimetic) drug, the nurse understands that these drugs produce

a positive inotropic, positive chronotropic, and positive dromotropic effect.

5

A hypertensive crisis may occur if adrenergic (sympathomimetic) drugs are given along with

MAOIs

6

The nurse assesses the intravenous infusion site of a patient receiving dopamine and finds it is infiltrated. The nurse will prepare which medication to treat this infiltration?

phenotolamine

7

A patient using Afrin nasal spray complains of worsening cold symptoms and tells the nurse, “I don’t understand why this is not working. I am using it almost every 3 hours!” The nurse’s response is based on knowledge that

the patient is suffering from rebound congestion related to excessive use of the Afrin nasal spray.

8

Your patient is receiving dobutamine as a continuous infusion. Titration of this medication is based upon which factors? (Select all that apply.)

heart rate
blood pressure
urine output

9

beta 1 blockers affect

heart

10

beta 2 blockers affect

lungs

11

ending for beta blockers

-olol

12

action of beta blockers

blocks the beta receptors in the heart causing:
↓ HR, ↓ force of contraction, ↓rate of A-V conduction

13

side effects of beta blockers

lethargy, GI disturbance, congestive heart failure, ↓BP, depression

14

Nonselective beta blockers may be used to treat hypertension and

supra ventricular dysrhythmias

15

An example of a cardioselective beta blocker includes

atenolol

16

When teaching a patient about beta blockers such as atenolol (Tenormin) and metoprolol (Lopressor), it is important to inform the patient that

abrupt medication withdrawal may lead to a rebound hypertensive crisis.

17

Propranolol (Inderal) is an effective

nonselective beta-adrenergic antagonist

18

During assessment of a patient diagnosed with pheochromocytoma, the nurse auscultates a blood pressure of 210/110 mm Hg. The nurse would expect to administer which medication?

phentolamine

19

When assessing for cardiovascular effects of a beta blocker, the nurse understands that these drugs produce

a negative inotropic, negative chronotropic, and negative dromotropic effect

20

The priority nursing diagnosis for a patient taking metoprolol (Lopressor) would be

Risk for decreased cardiac tissue perfusion related to effects of medication.

21

Patient teaching for a patient being discharged on a beta blocker includes which statement?

“If you take your pulse and it is less than 60, hold your medicine and call your health care provider for instructions.”

22

The nurse is admitting a patient with a history of angina and hypertension who is currently experiencing moderate heart failure. The patient’s current medication regimen includes digoxin (Lanoxin), furosemide (Lasix), and quinapril (Accupril). Which medication would be most beneficial for the health care provider to add to this patient’s treatment plan?

carvedilol (Coreg)

23

Beta blockers are used to treat which disorders? (Select all that apply.)

hypertension
angina pectoris
cardiac dysrhythmias

24

positive inotropic

increased force of contractions

25

positive chronotropic

increased heart rate

26

positive dromotropic

increased conduction through AV node

27

dobutamine (Dobutrex)
1. used for?
2. effect?

1. heart failure
2. increase cardiac contractility (↑ CO/SV)

28

dopamine (Inotropin)
1. used for?
2. effect? (3)

1. short and cardiac arrest
2. Low dose= dopaminergic (dilate blood vessels to brain, heart, and kidneys)
high does= beta 1 (improve cardiac contractility and CO)
highest dose= alpha 1 (vasoconstriction)

29

epinephrine (Adrenaline) used for?

allergic reactions/ anaphylaxis

30

norepinephrine (Levophed) used for

tx of hypotension and shock

31

drug interactions with adrenergics

anesthetics, MAOIs, antidepressants and antihistamines

32

tamsulosin/ Flomax
used for?
drug class?

tx benign prostate hyperplasia
alpha adrenergic blocker

33

regulatory fxn of cholinergic drugs (6)

slow HR
↑ gastric secretions
emptying of bladder &bowel
focus eye for near vision
constricting pupil
contracting bronchial smooth muscle

34

at recommended doses, what receptors do cholinergic drugs act on?

muscarinic

35

at HIGH doses, what receptors do cholinergic drugs act on?

nicotinic

36

Bethanechol

increases tone and motility of bladder and GI tract

helpful post-op for urinary retention

37

indirect-acting anti cholinesterase drugs used for?

tx of Alzheimer's disease
i.e. donepezil

38

pyridostigmine (Mestinon)

increases ACh by inhibiting anti cholinesterase to improve muscle strength (i.e. myasthenia gravis and paralysis from NMBDs)

39

donepezil (Aricept)

increases ACh to tx Alzheimers

40

memantime (Namenda)

not a cholinergic but used to tx Alzheimers

41

Cholinergic-blocking drugs

decrease muscle rigidity and tremor

42

Atropine

naturally occurring muscarinic used for CV disorders

43

tolterodine(Detrol)

tx for urinary frequency/urgency

do not use in open angle glaucoma

44

overdose of cholinergic blocking drug

↑ temperature, confusion, flushed face, decreased secretions/thirsty

45

angle clousure glaucoma

displacement of the iris preventing exit of aqueous humor from the anterior chamber

46

timolol

decreases production of aqueous humor

47

latanoprost

as effective as beta blockers with fewer adverse effects; realized the ciliary muscle

48

dipivefrin

pre-operative mydriatic
combination with non-selective beta blocker