NU 641 Advanced Clinical Pharmacology Exam 2 Questions and
Answers and Explanations | Latest - Regis
1. Which medication is considered the first-line therapy for a patient newly
diagnosed with Stage C heart failure with reduced ejection fraction (HFrEF)?
A. Digoxin
B. Amlodipine
C. Furosemide
D. ACE Inhibitor or ARNI
Answer: D
Explanation: Clinical guidelines recommend ACE inhibitors, ARBs, or ARNI as foundational
therapy for HFrEF to improve survival and reduce hospitalizations.
2. A patient on Lisinopril develops a dry, hacking cough. Which mechanism is
responsible for this side effect?
A. Accumulation of bradykinin
B. Inhibition of prostaglandins
C. Direct irritation of the bronchial mucosa
D. Increased histamine release
Answer: A
,Explanation: ACE inhibitors prevent the breakdown of bradykinin, which can accumulate
in the lungs and cause a dry cough.
3. Which laboratory value must be monitored closely in a patient taking
Spironolactone?
A. Serum Calcium
B. Serum Magnesium
C. Serum Sodium
D. Serum Potassium
Answer: D
Explanation: Spironolactone is a potassium-sparing diuretic; hyperkalemia is a significant
and potentially life-threatening risk.
4. What is the mechanism of action of Warfarin?
A. Inhibition of Vitamin K epoxide reductase
B. Direct thrombin inhibition
C. Direct inhibition of Factor Xa
D. Activation of Antithrombin III
Answer: A
Explanation: Warfarin works by inhibiting the enzyme Vitamin K epoxide reductase,
thereby preventing the synthesis of Vitamin K-dependent clotting factors.
,5. A patient taking Metformin is scheduled for a CT scan with IV contrast. What
is the standard recommendation for Metformin management?
A. Increase the dose for 24 hours
B. Hold Metformin 48 hours before and after the procedure
C. Hold Metformin on the day of and for 48 hours after the procedure
D. Continue the medication as usual
Answer: C
Explanation: Metformin should be held the day of the procedure and for 48 hours after to
prevent lactic acidosis if contrast-induced renal failure occurs.
6. Which of the following is a potential side effect of high-dose Statin therapy?
A. Hypoglycemia
B. Hyperthyroidism
C. Rhabdomyolysis
D. Gingival hyperplasia
Answer: C
Explanation: Statins carry a risk of myopathy, with rhabdomyolysis being the most severe
form.
7. What is the primary mechanism of action of Albuterol in asthma treatment?
A. Leukotriene receptor antagonism
B. Anticholinergic blockade
, C. Beta-2 adrenergic receptor agonism
D. Inhibition of phosphodiesterase
Answer: C
Explanation: Albuterol is a Short-Acting Beta Agonist (SABA) that causes bronchodilation
by stimulating beta-2 receptors in the lungs.
8. A patient is prescribed Amiodarone. Which monitoring is specifically required
due to its iodine content?
A. Renal function tests
B. Thyroid function tests
C. Bone density scans
D. Hearing tests
Answer: B
Explanation: Amiodarone contains iodine and can lead to either hypo- or
hyperthyroidism.
9. Which class of drugs is most effective for the immediate relief of an acute
gout attack?
A. Allopurinol
B. Probenecid
C. Febuxostat
D. NSAIDs
Answers and Explanations | Latest - Regis
1. Which medication is considered the first-line therapy for a patient newly
diagnosed with Stage C heart failure with reduced ejection fraction (HFrEF)?
A. Digoxin
B. Amlodipine
C. Furosemide
D. ACE Inhibitor or ARNI
Answer: D
Explanation: Clinical guidelines recommend ACE inhibitors, ARBs, or ARNI as foundational
therapy for HFrEF to improve survival and reduce hospitalizations.
2. A patient on Lisinopril develops a dry, hacking cough. Which mechanism is
responsible for this side effect?
A. Accumulation of bradykinin
B. Inhibition of prostaglandins
C. Direct irritation of the bronchial mucosa
D. Increased histamine release
Answer: A
,Explanation: ACE inhibitors prevent the breakdown of bradykinin, which can accumulate
in the lungs and cause a dry cough.
3. Which laboratory value must be monitored closely in a patient taking
Spironolactone?
A. Serum Calcium
B. Serum Magnesium
C. Serum Sodium
D. Serum Potassium
Answer: D
Explanation: Spironolactone is a potassium-sparing diuretic; hyperkalemia is a significant
and potentially life-threatening risk.
4. What is the mechanism of action of Warfarin?
A. Inhibition of Vitamin K epoxide reductase
B. Direct thrombin inhibition
C. Direct inhibition of Factor Xa
D. Activation of Antithrombin III
Answer: A
Explanation: Warfarin works by inhibiting the enzyme Vitamin K epoxide reductase,
thereby preventing the synthesis of Vitamin K-dependent clotting factors.
,5. A patient taking Metformin is scheduled for a CT scan with IV contrast. What
is the standard recommendation for Metformin management?
A. Increase the dose for 24 hours
B. Hold Metformin 48 hours before and after the procedure
C. Hold Metformin on the day of and for 48 hours after the procedure
D. Continue the medication as usual
Answer: C
Explanation: Metformin should be held the day of the procedure and for 48 hours after to
prevent lactic acidosis if contrast-induced renal failure occurs.
6. Which of the following is a potential side effect of high-dose Statin therapy?
A. Hypoglycemia
B. Hyperthyroidism
C. Rhabdomyolysis
D. Gingival hyperplasia
Answer: C
Explanation: Statins carry a risk of myopathy, with rhabdomyolysis being the most severe
form.
7. What is the primary mechanism of action of Albuterol in asthma treatment?
A. Leukotriene receptor antagonism
B. Anticholinergic blockade
, C. Beta-2 adrenergic receptor agonism
D. Inhibition of phosphodiesterase
Answer: C
Explanation: Albuterol is a Short-Acting Beta Agonist (SABA) that causes bronchodilation
by stimulating beta-2 receptors in the lungs.
8. A patient is prescribed Amiodarone. Which monitoring is specifically required
due to its iodine content?
A. Renal function tests
B. Thyroid function tests
C. Bone density scans
D. Hearing tests
Answer: B
Explanation: Amiodarone contains iodine and can lead to either hypo- or
hyperthyroidism.
9. Which class of drugs is most effective for the immediate relief of an acute
gout attack?
A. Allopurinol
B. Probenecid
C. Febuxostat
D. NSAIDs
