NURS 6521 ADVANCED
PHARMACOLOGY COMPREHENSIVE
FINAL EXAM 2026/2027
1. A patient with chronic atrial fibrillation is prescribed Warfarin. Which of the following
laboratory values is the primary indicator of the drug’s therapeutic effectiveness and safety?
A. Activated partial thromboplastin time (aPTT)
B. Platelet count
C. International Normalized Ratio (INR)
D. Bleeding time
Answer: C
Conceptual Explanation: INR is the standard monitoring parameter for Warfarin therapy,
typically targeting a range of 2.0 to 3.0 for atrial fibrillation. aPTT is used for Heparin
monitoring.
2. A 65-year-old patient taking Lisinopril for hypertension develops a dry, persistent cough.
What is the physiological mechanism responsible for this adverse effect?
A. Increased levels of bradykinin
,B. Inhibition of prostaglandin synthesis
C. Direct irritation of the bronchial mucosa
D. Release of histamine from mast cells
Answer: A
Conceptual Explanation: ACE inhibitors prevent the breakdown of bradykinin, leading to
its accumulation in the lungs, which triggers a dry cough in some patients.
3. Which antibiotic class is most frequently associated with the risk of ototoxicity and
nephrotoxicity, requiring therapeutic drug monitoring of trough levels?
A. Fluoroquinolones
B. Aminoglycosides
C. Macrolides
D. Cephalosporins
Answer: B
Conceptual Explanation: Aminoglycosides (e.g., Gentamicin, Tobramycin) have a narrow
therapeutic index and carry significant risks for hearing loss and renal impairment.
4. A patient is prescribed Metformin for Type 2 Diabetes. Which laboratory value would
necessitate immediate discontinuation of this medication due to the risk of lactic acidosis?
A. Serum Creatinine > 1.5 mg/dL (men) or > 1.4 mg/dL (women)
B. Elevated ALT/AST
, C. Decreased Serum Potassium
D. Elevated HbA1c
Answer: A
Conceptual Explanation: Metformin is renally excreted. Impaired renal function (often
defined by creatinine thresholds or GFR < 30) significantly increases the risk of life-
threatening lactic acidosis.
5. A patient presents with visual disturbances (yellow-green halos) and nausea. They are
currently taking Digoxin. What is the most likely cause of these symptoms?
A. Acute myocardial infarction
B. Hypoglycemia
C. Digoxin toxicity
D. Normal side effects of the medication
Answer: C
Conceptual Explanation: Visual changes and gastrointestinal distress are hallmark early
signs of Digoxin toxicity, often exacerbated by hypokalemia.
6. Which of the following is the most appropriate education for a patient starting
Levothyroxine for hypothyroidism?
A. Take the medication with a high-calcium breakfast
B. Take the medication at bedtime with a full meal
PHARMACOLOGY COMPREHENSIVE
FINAL EXAM 2026/2027
1. A patient with chronic atrial fibrillation is prescribed Warfarin. Which of the following
laboratory values is the primary indicator of the drug’s therapeutic effectiveness and safety?
A. Activated partial thromboplastin time (aPTT)
B. Platelet count
C. International Normalized Ratio (INR)
D. Bleeding time
Answer: C
Conceptual Explanation: INR is the standard monitoring parameter for Warfarin therapy,
typically targeting a range of 2.0 to 3.0 for atrial fibrillation. aPTT is used for Heparin
monitoring.
2. A 65-year-old patient taking Lisinopril for hypertension develops a dry, persistent cough.
What is the physiological mechanism responsible for this adverse effect?
A. Increased levels of bradykinin
,B. Inhibition of prostaglandin synthesis
C. Direct irritation of the bronchial mucosa
D. Release of histamine from mast cells
Answer: A
Conceptual Explanation: ACE inhibitors prevent the breakdown of bradykinin, leading to
its accumulation in the lungs, which triggers a dry cough in some patients.
3. Which antibiotic class is most frequently associated with the risk of ototoxicity and
nephrotoxicity, requiring therapeutic drug monitoring of trough levels?
A. Fluoroquinolones
B. Aminoglycosides
C. Macrolides
D. Cephalosporins
Answer: B
Conceptual Explanation: Aminoglycosides (e.g., Gentamicin, Tobramycin) have a narrow
therapeutic index and carry significant risks for hearing loss and renal impairment.
4. A patient is prescribed Metformin for Type 2 Diabetes. Which laboratory value would
necessitate immediate discontinuation of this medication due to the risk of lactic acidosis?
A. Serum Creatinine > 1.5 mg/dL (men) or > 1.4 mg/dL (women)
B. Elevated ALT/AST
, C. Decreased Serum Potassium
D. Elevated HbA1c
Answer: A
Conceptual Explanation: Metformin is renally excreted. Impaired renal function (often
defined by creatinine thresholds or GFR < 30) significantly increases the risk of life-
threatening lactic acidosis.
5. A patient presents with visual disturbances (yellow-green halos) and nausea. They are
currently taking Digoxin. What is the most likely cause of these symptoms?
A. Acute myocardial infarction
B. Hypoglycemia
C. Digoxin toxicity
D. Normal side effects of the medication
Answer: C
Conceptual Explanation: Visual changes and gastrointestinal distress are hallmark early
signs of Digoxin toxicity, often exacerbated by hypokalemia.
6. Which of the following is the most appropriate education for a patient starting
Levothyroxine for hypothyroidism?
A. Take the medication with a high-calcium breakfast
B. Take the medication at bedtime with a full meal
