NURS 5334 ADVANCED PHARMACOLOGY COMPLETE
TESTBANK QUESTIONS AND CORRECT ANSWERS 2026
,1. A 58-year-old male with hypertension and type 2 diabetes is
started on lisinopril. Which primary pharmacodynamic action
explains its antihypertensive effect?
A. Direct blockade of beta-1 receptors in the heart
B. Inhibition of angiotensin-converting enzyme, decreasing
angiotensin II production
C. Antagonism of aldosterone at the renal collecting duct
D. Direct relaxation of vascular smooth muscle via nitric oxide
release
Correct Answer: B
Explanation: ACE inhibitors lower blood pressure by reducing
angiotensin II formation, leading to vasodilation and reduced
aldosterone-mediated volume expansion; beta-blockade,
aldosterone antagonism, and direct vasodilators act through
different targets.
2. A 32-year-old woman with asthma requires a rescue inhaler.
Which agent is most appropriate as first-line reliever therapy?
A. Salmeterol inhaler
B. Ipratropium inhaler
C. Albuterol inhaler
D. Theophylline sustained-release tablets
Correct Answer: C
Explanation: Short-acting beta-2 agonists such as albuterol
provide rapid bronchodilation for acute asthma symptoms, while
, salmeterol is long-acting, ipratropium is primarily adjunctive, and
theophylline is slow in onset and less safe for rescue use.
3. A 70-year-old patient with chronic kidney disease (eGFR 25
mL/min) is prescribed gentamicin. Which pharmacokinetic
property requires the most careful adjustment?
A. Hepatic metabolism
B. Renal clearance
C. Protein binding
D. Volume of distribution in adipose tissue
Correct Answer: B
Explanation: Aminoglycosides are eliminated mainly by the
kidneys, so reduced renal function markedly prolongs half-life and
increases toxicity risk, while hepatic metabolism, protein binding,
and fat distribution are not the primary determinants of their
clearance.
4. A nurse practitioner is initiating warfarin in a 63-year-old patient
with atrial fibrillation. Which factor will most likely necessitate a
lower initial dose?
A. Concomitant use of rifampin
B. High vitamin K diet
C. CYP2C9 poor metabolizer genotype
D. Chronic alcohol use with enzyme induction
Correct Answer: C
Explanation: CYP2C9 poor metabolizers clear warfarin more
slowly, increasing bleeding risk and requiring dose reduction,
, whereas rifampin, high vitamin K intake, and enzyme induction
typically increase warfarin dose requirements by enhancing
metabolism or antagonizing its effect.
5. A 26-year-old pregnant woman in her first trimester presents with
newly diagnosed epilepsy. Which antiepileptic drug is most clearly
contraindicated due to teratogenic risk?
A. Lamotrigine
B. Levetiracetam
C. Valproic acid
D. Carbamazepine
Correct Answer: C
Explanation: Valproic acid is strongly associated with neural tube
defects and other malformations, making it relatively
contraindicated in early pregnancy, while lamotrigine and
levetiracetam have more favorable profiles and carbamazepine
carries some risk but less than valproate at typical doses.
6. A patient with heart failure and reduced ejection fraction is
started on metoprolol succinate. What is the primary mechanism
by which this drug improves long-term outcomes?
A. Immediate increase in cardiac contractility
B. Chronic reduction of sympathetic stimulation and ventricular
remodeling
C. Direct natriuretic effect on the kidney
D. Inhibition of the renin–angiotensin–aldosterone system
Correct Answer: B
TESTBANK QUESTIONS AND CORRECT ANSWERS 2026
,1. A 58-year-old male with hypertension and type 2 diabetes is
started on lisinopril. Which primary pharmacodynamic action
explains its antihypertensive effect?
A. Direct blockade of beta-1 receptors in the heart
B. Inhibition of angiotensin-converting enzyme, decreasing
angiotensin II production
C. Antagonism of aldosterone at the renal collecting duct
D. Direct relaxation of vascular smooth muscle via nitric oxide
release
Correct Answer: B
Explanation: ACE inhibitors lower blood pressure by reducing
angiotensin II formation, leading to vasodilation and reduced
aldosterone-mediated volume expansion; beta-blockade,
aldosterone antagonism, and direct vasodilators act through
different targets.
2. A 32-year-old woman with asthma requires a rescue inhaler.
Which agent is most appropriate as first-line reliever therapy?
A. Salmeterol inhaler
B. Ipratropium inhaler
C. Albuterol inhaler
D. Theophylline sustained-release tablets
Correct Answer: C
Explanation: Short-acting beta-2 agonists such as albuterol
provide rapid bronchodilation for acute asthma symptoms, while
, salmeterol is long-acting, ipratropium is primarily adjunctive, and
theophylline is slow in onset and less safe for rescue use.
3. A 70-year-old patient with chronic kidney disease (eGFR 25
mL/min) is prescribed gentamicin. Which pharmacokinetic
property requires the most careful adjustment?
A. Hepatic metabolism
B. Renal clearance
C. Protein binding
D. Volume of distribution in adipose tissue
Correct Answer: B
Explanation: Aminoglycosides are eliminated mainly by the
kidneys, so reduced renal function markedly prolongs half-life and
increases toxicity risk, while hepatic metabolism, protein binding,
and fat distribution are not the primary determinants of their
clearance.
4. A nurse practitioner is initiating warfarin in a 63-year-old patient
with atrial fibrillation. Which factor will most likely necessitate a
lower initial dose?
A. Concomitant use of rifampin
B. High vitamin K diet
C. CYP2C9 poor metabolizer genotype
D. Chronic alcohol use with enzyme induction
Correct Answer: C
Explanation: CYP2C9 poor metabolizers clear warfarin more
slowly, increasing bleeding risk and requiring dose reduction,
, whereas rifampin, high vitamin K intake, and enzyme induction
typically increase warfarin dose requirements by enhancing
metabolism or antagonizing its effect.
5. A 26-year-old pregnant woman in her first trimester presents with
newly diagnosed epilepsy. Which antiepileptic drug is most clearly
contraindicated due to teratogenic risk?
A. Lamotrigine
B. Levetiracetam
C. Valproic acid
D. Carbamazepine
Correct Answer: C
Explanation: Valproic acid is strongly associated with neural tube
defects and other malformations, making it relatively
contraindicated in early pregnancy, while lamotrigine and
levetiracetam have more favorable profiles and carbamazepine
carries some risk but less than valproate at typical doses.
6. A patient with heart failure and reduced ejection fraction is
started on metoprolol succinate. What is the primary mechanism
by which this drug improves long-term outcomes?
A. Immediate increase in cardiac contractility
B. Chronic reduction of sympathetic stimulation and ventricular
remodeling
C. Direct natriuretic effect on the kidney
D. Inhibition of the renin–angiotensin–aldosterone system
Correct Answer: B
