NURS 5334 ADVANCED
PHARMACOLOGY FINAL EXAM
QUESTIONS AND ANSWERS
1. Which pharmacokinetic parameter is primarily responsible for determining the loading
dose of a medication?
A. Clearance
B. Bioavailability
C. Volume of distribution
D. Half-life
Answer: C
Conceptual Explanation: The loading dose is calculated based on the target plasma
concentration and the volume of distribution (Vd). Clearance determines the maintenance
dose.
2. A patient taking an ACE inhibitor for hypertension develops a persistent, dry cough. What
is the biochemical mechanism responsible for this side effect?
A. Inhibition of renin release
B. Increase in angiotensin II levels
,C. Direct stimulation of pulmonary stretch receptors
D. Accumulation of bradykinin in the lungs
Answer: D
Conceptual Explanation: ACE inhibitors block the enzyme that breaks down bradykinin.
The resulting accumulation of bradykinin in the respiratory tract leads to a dry cough.
3. When initiating Warfarin therapy, why is it critical to bridge with a rapid-acting
anticoagulant like Heparin?
A. Warfarin causes a transient prothrombotic state by depleting Protein C and S
B. Warfarin has a low volume of distribution
C. Warfarin is only effective in the presence of Heparin
D. Heparin increases the gastrointestinal absorption of Warfarin
Answer: A
Conceptual Explanation: Warfarin inhibits Vitamin K-dependent clotting factors. Because
Protein C and S (anticoagulants) have shorter half-lives than Factors II, IX, and X, their
depletion initially creates a prothrombotic state.
4. A patient with a history of severe asthma requires a beta-blocker for heart failure. Which
agent is the most appropriate choice?
A. Metoprolol succinate
B. Nadolol
, C. Propranolol
D. Timolol
Answer: A
Conceptual Explanation: Metoprolol succinate is a cardioselective beta-1 blocker, which
is less likely to cause bronchoconstriction compared to non-selective beta-blockers like
Propranolol.
5. Which laboratory value is most critical to monitor in a patient receiving high-dose Statin
therapy who reports dark-colored urine and muscle pain?
A. Serum Creatinine
B. Creatine Kinase (CK)
C. Alanine Aminotransferase (ALT)
D. Glycated Hemoglobin (HbA1c)
Answer: B
Conceptual Explanation: Dark urine and muscle pain suggest rhabdomyolysis, a rare but
serious side effect of statins. An elevated CK level confirms muscle damage.
6. Digoxin toxicity is most likely to occur in the presence of which electrolyte abnormality?
A. Hypokalemia
B. Hyperkalemia
C. Hypermagnesemia
PHARMACOLOGY FINAL EXAM
QUESTIONS AND ANSWERS
1. Which pharmacokinetic parameter is primarily responsible for determining the loading
dose of a medication?
A. Clearance
B. Bioavailability
C. Volume of distribution
D. Half-life
Answer: C
Conceptual Explanation: The loading dose is calculated based on the target plasma
concentration and the volume of distribution (Vd). Clearance determines the maintenance
dose.
2. A patient taking an ACE inhibitor for hypertension develops a persistent, dry cough. What
is the biochemical mechanism responsible for this side effect?
A. Inhibition of renin release
B. Increase in angiotensin II levels
,C. Direct stimulation of pulmonary stretch receptors
D. Accumulation of bradykinin in the lungs
Answer: D
Conceptual Explanation: ACE inhibitors block the enzyme that breaks down bradykinin.
The resulting accumulation of bradykinin in the respiratory tract leads to a dry cough.
3. When initiating Warfarin therapy, why is it critical to bridge with a rapid-acting
anticoagulant like Heparin?
A. Warfarin causes a transient prothrombotic state by depleting Protein C and S
B. Warfarin has a low volume of distribution
C. Warfarin is only effective in the presence of Heparin
D. Heparin increases the gastrointestinal absorption of Warfarin
Answer: A
Conceptual Explanation: Warfarin inhibits Vitamin K-dependent clotting factors. Because
Protein C and S (anticoagulants) have shorter half-lives than Factors II, IX, and X, their
depletion initially creates a prothrombotic state.
4. A patient with a history of severe asthma requires a beta-blocker for heart failure. Which
agent is the most appropriate choice?
A. Metoprolol succinate
B. Nadolol
, C. Propranolol
D. Timolol
Answer: A
Conceptual Explanation: Metoprolol succinate is a cardioselective beta-1 blocker, which
is less likely to cause bronchoconstriction compared to non-selective beta-blockers like
Propranolol.
5. Which laboratory value is most critical to monitor in a patient receiving high-dose Statin
therapy who reports dark-colored urine and muscle pain?
A. Serum Creatinine
B. Creatine Kinase (CK)
C. Alanine Aminotransferase (ALT)
D. Glycated Hemoglobin (HbA1c)
Answer: B
Conceptual Explanation: Dark urine and muscle pain suggest rhabdomyolysis, a rare but
serious side effect of statins. An elevated CK level confirms muscle damage.
6. Digoxin toxicity is most likely to occur in the presence of which electrolyte abnormality?
A. Hypokalemia
B. Hyperkalemia
C. Hypermagnesemia
