NURS 6521N WEEK 4 ADVANCED
PHARMACOLOGY EXAM QUESTIONS
WITH COMPLETE AND VERIFIED
SOLUTIONS: WALDEN UNIVERSITY
1. A 65-year-old patient with heart failure is prescribed Lisinopril. The nurse practitioner
understands that ACE inhibitors primarily exert their effect by which mechanism?
A. Directly blocking the Angiotensin II type 1 receptors
B. Inhibiting the conversion of Angiotensin I to Angiotensin II
C. Decreasing the production of renin in the kidneys
D. Inhibiting the enzyme phosphodiesterase III
Answer: B
Conceptual Explanation: ACE inhibitors block the angiotensin-converting enzyme,
preventing the conversion of Angiotensin I to Angiotensin II, which is a potent
vasoconstrictor and stimulator of aldosterone.
2. Which of the following laboratory values is most critical for a patient receiving continuous
intravenous Heparin therapy for a pulmonary embolism?
A. Prothrombin Time (PT)
B. Activated Partial Thromboplastin Time (aPTT)
,C. International Normalized Ratio (INR)
D. Bleeding Time
Answer: B
Conceptual Explanation: aPTT is the standard laboratory test used to monitor the
effectiveness and safety of unfractionated heparin therapy.
3. A patient taking Warfarin (Coumadin) presents with an INR of 8.5 but no active bleeding.
What is the most appropriate initial intervention?
A. Hold Warfarin and administer oral Vitamin K1
B. Administer Vitamin K1 intravenously immediately
C. Administer Fresh Frozen Plasma (FFP)
D. Continue the current dose and recheck in 24 hours
Answer: A
Conceptual Explanation: For high INR (>9.0) without bleeding, oral Vitamin K is
preferred. For INR between 5 and 9 without bleeding, holding the dose and potentially low-
dose oral Vitamin K is indicated per clinical guidelines.
4. A patient is started on Spironolactone for the management of heart failure. Which side
effect is a result of its antagonism of androgen receptors?
A. Gynecomastia
B. Hyperkalemia
, C. Hypernatremia
D. Ototoxicity
Answer: A
Conceptual Explanation: Spironolactone is a non-selective mineralocorticoid antagonist
that also blocks androgen receptors, frequently causing gynecomastia in men.
5. Beta-blockers should be used with extreme caution in patients with which of the following
conditions due to the risk of bronchospasm?
A. Hypertension
B. Hyperthyroidism
C. Asthma
D. Glaucoma
Answer: C
Conceptual Explanation: Non-selective beta-blockers block Beta-2 receptors in the lungs,
which can cause significant bronchoconstriction in patients with reactive airway disease
like asthma.
6. When prescribing Amiodarone, the nurse practitioner must monitor which organ function
periodically due to potential toxicity?
A. Kidney function (Creatinine)
B. Pancreatic function (Amylase)
PHARMACOLOGY EXAM QUESTIONS
WITH COMPLETE AND VERIFIED
SOLUTIONS: WALDEN UNIVERSITY
1. A 65-year-old patient with heart failure is prescribed Lisinopril. The nurse practitioner
understands that ACE inhibitors primarily exert their effect by which mechanism?
A. Directly blocking the Angiotensin II type 1 receptors
B. Inhibiting the conversion of Angiotensin I to Angiotensin II
C. Decreasing the production of renin in the kidneys
D. Inhibiting the enzyme phosphodiesterase III
Answer: B
Conceptual Explanation: ACE inhibitors block the angiotensin-converting enzyme,
preventing the conversion of Angiotensin I to Angiotensin II, which is a potent
vasoconstrictor and stimulator of aldosterone.
2. Which of the following laboratory values is most critical for a patient receiving continuous
intravenous Heparin therapy for a pulmonary embolism?
A. Prothrombin Time (PT)
B. Activated Partial Thromboplastin Time (aPTT)
,C. International Normalized Ratio (INR)
D. Bleeding Time
Answer: B
Conceptual Explanation: aPTT is the standard laboratory test used to monitor the
effectiveness and safety of unfractionated heparin therapy.
3. A patient taking Warfarin (Coumadin) presents with an INR of 8.5 but no active bleeding.
What is the most appropriate initial intervention?
A. Hold Warfarin and administer oral Vitamin K1
B. Administer Vitamin K1 intravenously immediately
C. Administer Fresh Frozen Plasma (FFP)
D. Continue the current dose and recheck in 24 hours
Answer: A
Conceptual Explanation: For high INR (>9.0) without bleeding, oral Vitamin K is
preferred. For INR between 5 and 9 without bleeding, holding the dose and potentially low-
dose oral Vitamin K is indicated per clinical guidelines.
4. A patient is started on Spironolactone for the management of heart failure. Which side
effect is a result of its antagonism of androgen receptors?
A. Gynecomastia
B. Hyperkalemia
, C. Hypernatremia
D. Ototoxicity
Answer: A
Conceptual Explanation: Spironolactone is a non-selective mineralocorticoid antagonist
that also blocks androgen receptors, frequently causing gynecomastia in men.
5. Beta-blockers should be used with extreme caution in patients with which of the following
conditions due to the risk of bronchospasm?
A. Hypertension
B. Hyperthyroidism
C. Asthma
D. Glaucoma
Answer: C
Conceptual Explanation: Non-selective beta-blockers block Beta-2 receptors in the lungs,
which can cause significant bronchoconstriction in patients with reactive airway disease
like asthma.
6. When prescribing Amiodarone, the nurse practitioner must monitor which organ function
periodically due to potential toxicity?
A. Kidney function (Creatinine)
B. Pancreatic function (Amylase)
