Verified Correct Detailed Answers Latest
Update 2025
Epinephrine is used to treat cardiac arrest and status asthmaticus
because of which of the following actions?
A. Increased speed of conduction and gluconeogenesis
B. Bronchodilation and increased heart rate, contractility, and
conduction
C. Increased vasodilation and enhanced myocardial contractility
D. Bronchoconstriction and increased heart rate --- correct answer ---
B (Bronchodilation results from stimulated beta receptors, and cardiac
effects result from the stimulation of ß1 receptors. Choice A does not
address respiratory effects of medication. Choice C is incorrect
because α-stimulating drugs cause vasoconstriction. Bronchodilation,
not bronchoconstriction, results from ß2 activity.)
Following norepinephrine (Levophed) administration, it is essential to
the nurse to assess:
,A. electrolyte status
B. color and temperature of toes and fingers
C. capillary refill
D. ventricular arrhythmias --- correct answer ---B (Because decreased
perfusion is a side effect of norepinephrine (Levophed), the nurse
must check circulation frequently. Capillary refill is not a reliable
indication of perfusion in a shock state. Choices A and D are not
specific for norepinephrine.)
When administering dopamine (Intropin), it is most important for the
nurse to know that:
A. the drug's action varies according to the dose.
B. the drug may be used instead of fluid replacement.
C. the drug cannot be directly mixed in solutions containing
bicarbonate or aminophylline.
D. the lowest dose to produce the desired effect should be used. ---
correct answer ---C (The nurse is responsible for knowing compatible
solutions before administering dopamine (Intropin). It is important to
know that drug action varies by dose, but the physician is responsible
for determining the dose. Dopamine should not be used instead of
fluid replacement. Choice D is incorrect because, although it is true, it
is not the nurse's primary concern. It is a collaborative action in
which the physician is involved in determining the rate.)
,Dobutamine (Dobutrex) improves cardiac output and is indicated for
use in all of the following conditions except:
A. septic shock
B. congestive heart failure
C. arrhythmias
D. pulmonary congestion --- correct answer ---C (Dobutamine
(Dobutrex) is not used to treat arrhythmias. Choices A, B, and D are
conditions are conditions that respond to dobutamine.)
Which of the following effects of calcium channel blockers causes a
reduction in blood pressure?
A. Increased cardiac output
B. Decreased peripheral vascular resistance
C. Decreased renal blood flow
D. Calcium influx into cardiac muscles --- correct answer ---B
A preoperative patient receives atropine before induction of
anesthesia. The nurse caring for this patient understands that this
agent is used to prevent:
, A. anxiety.
B. bradycardia.
C. dry mouth.
D. hypertension. --- correct answer ---B (Atropine, an anticholinergic
drug, is used as an adjunct to anesthesia to counter the effects of
vagal stimulation, which is caused by surgical manipulations that
trigger parasympathetic reflexes, resulting in bradycardia. Atropine is
not an anxiolytic. Atropine causes dry mouth and sometimes is used to
minimize bronchial secretions.)
When titrating an analgesic to manage pain, what is the priority goal?
A. Administer smallest dose that provides relief with the fewest side
effects.
B. Titrate upward until the client is pain free.
C. Titrate downwards to prevent toxicity.
D. Ensure that the drug is adequate to meet the client's subjective
needs. --- correct answer ---A (The goal is to control pain while
minimizing side effects. For severe pain, the medication can be
titrated upward until pain is controlled. Downward titration occurs
when the pain begins to subside. Adequate dosing is important;
however, the concept of controlled dosing applies more to potent
vasoactive drugs.)