NURS 6521 ADVANCED
PHARMACOLOGY FINAL EXAM STUDY
GUIDE
1. A patient with chronic heart failure is prescribed Digoxin. Which electrolyte imbalance
should the nurse practitioner closely monitor to prevent Digoxin toxicity?
A. Hypokalemia
B. Hyponatremia
C. Hypercalcemia
D. Hypermagnesemia
Answer: A
Conceptual Explanation: Hypokalemia (low potassium) sensitizes the myocardium to
digoxin, significantly increasing the risk of digoxin toxicity, even when serum digoxin levels
are within the therapeutic range.
2. When prescribing an ACE inhibitor, such as Lisinopril, which mechanism is responsible for
the common side effect of a dry, nonproductive cough?
A. Inhibition of prostaglandin synthesis
,B. Accumulation of bradykinin in the upper airways
C. Direct irritation of the bronchial mucosa
D. Increased production of Angiotensin II
Answer: B
Conceptual Explanation: ACE inhibitors prevent the breakdown of bradykinin. The
resulting accumulation of bradykinin in the lungs leads to the characteristic dry cough
associated with this drug class.
3. A patient requires anticoagulation with Warfarin. What is the mechanism of action for this
medication?
A. Direct inhibition of Thrombin (Factor IIa)
B. Competitive antagonism of Vitamin K
C. Inhibition of Factor Xa
D. Irreversible inhibition of cyclooxygenase-1
Answer: B
Conceptual Explanation: Warfarin acts by inhibiting the enzyme Vitamin K epoxide
reductase, thereby interfering with the cyclic regeneration of Vitamin K and the synthesis
of Vitamin K-dependent clotting factors (II, VII, IX, X).
, 4. Which of the following instructions is crucial for a patient starting Alendronate for
osteoporosis?
A. Take the medication with a high-calcium meal.
B. Remain upright for at least 30 minutes after taking the medication.
C. Take the medication at bedtime with a full glass of milk.
D. Crush the tablet if it is too difficult to swallow.
Answer: B
Conceptual Explanation: Alendronate, a bisphosphonate, can cause severe esophageal
irritation and ulceration. Patients must remain upright and take it with a full glass of water
on an empty stomach to minimize this risk.
5. A patient is diagnosed with Clostridioides difficile (C. diff) infection. What is the preferred
first-line oral treatment according to current guidelines?
A. Metronidazole
B. Vancomycin
C. Ciprofloxacin
D. Amoxicillin
Answer: B
PHARMACOLOGY FINAL EXAM STUDY
GUIDE
1. A patient with chronic heart failure is prescribed Digoxin. Which electrolyte imbalance
should the nurse practitioner closely monitor to prevent Digoxin toxicity?
A. Hypokalemia
B. Hyponatremia
C. Hypercalcemia
D. Hypermagnesemia
Answer: A
Conceptual Explanation: Hypokalemia (low potassium) sensitizes the myocardium to
digoxin, significantly increasing the risk of digoxin toxicity, even when serum digoxin levels
are within the therapeutic range.
2. When prescribing an ACE inhibitor, such as Lisinopril, which mechanism is responsible for
the common side effect of a dry, nonproductive cough?
A. Inhibition of prostaglandin synthesis
,B. Accumulation of bradykinin in the upper airways
C. Direct irritation of the bronchial mucosa
D. Increased production of Angiotensin II
Answer: B
Conceptual Explanation: ACE inhibitors prevent the breakdown of bradykinin. The
resulting accumulation of bradykinin in the lungs leads to the characteristic dry cough
associated with this drug class.
3. A patient requires anticoagulation with Warfarin. What is the mechanism of action for this
medication?
A. Direct inhibition of Thrombin (Factor IIa)
B. Competitive antagonism of Vitamin K
C. Inhibition of Factor Xa
D. Irreversible inhibition of cyclooxygenase-1
Answer: B
Conceptual Explanation: Warfarin acts by inhibiting the enzyme Vitamin K epoxide
reductase, thereby interfering with the cyclic regeneration of Vitamin K and the synthesis
of Vitamin K-dependent clotting factors (II, VII, IX, X).
, 4. Which of the following instructions is crucial for a patient starting Alendronate for
osteoporosis?
A. Take the medication with a high-calcium meal.
B. Remain upright for at least 30 minutes after taking the medication.
C. Take the medication at bedtime with a full glass of milk.
D. Crush the tablet if it is too difficult to swallow.
Answer: B
Conceptual Explanation: Alendronate, a bisphosphonate, can cause severe esophageal
irritation and ulceration. Patients must remain upright and take it with a full glass of water
on an empty stomach to minimize this risk.
5. A patient is diagnosed with Clostridioides difficile (C. diff) infection. What is the preferred
first-line oral treatment according to current guidelines?
A. Metronidazole
B. Vancomycin
C. Ciprofloxacin
D. Amoxicillin
Answer: B
