NURS 6521 ADVANCED
PHARMACOLOGY MIDTERM EXAM
QUESTIONS AND ANSWERS 100%
VERIFIED BY EXPERTS. 2026/2027
1. A patient with chronic renal failure requires an adjustment in their medication dosage.
Which pharmacokinetic parameter is most significantly altered in this patient?
A. Absorption
B. Excretion
C. Metabolism
D. Distribution
Answer: B
Conceptual Explanation: Excretion is the primary pharmacokinetic process affected by
renal failure, as the kidneys are responsible for clearing most drugs and metabolites from
the body.
2. Which of the following is a characteristic of a drug with a high volume of distribution (Vd)?
A. It is likely lipid-soluble and penetrates tissues extensively.
B. It is highly bound to plasma proteins like albumin.
C. It remains primarily in the intravascular space.
,D. It has a very short half-life due to rapid renal clearance.
Answer: A
Conceptual Explanation: A high Vd indicates that the drug is distributed extensively into
tissues rather than remaining in the plasma, which is common for lipophilic drugs.
3. An elderly patient is prescribed a drug that is a substrate of the CYP3A4 enzyme system. If
the patient also consumes grapefruit juice, what is the likely outcome?
A. Decreased drug levels due to enzyme induction.
B. Enhanced renal excretion of the drug.
C. No change in drug levels as grapefruit juice only affects CYP2D6.
D. Increased drug levels due to enzyme inhibition.
Answer: D
Conceptual Explanation: Grapefruit juice is a potent inhibitor of the CYP3A4 enzyme in
the intestinal wall, which leads to decreased first-pass metabolism and increased systemic
levels of substrate drugs.
4. When initiating Lisinopril for a patient with hypertension, which laboratory value should
the nurse practitioner monitor most closely?
A. Serum Potassium
B. Serum Sodium
C. Alanine Aminotransferase (ALT)
, D. Platelet count
Answer: A
Conceptual Explanation: ACE inhibitors like Lisinopril block aldosterone secretion, which
can lead to potassium retention and hyperkalemia.
5. A patient is diagnosed with Type 2 Diabetes and has a history of Heart Failure (HFrEF).
Which class of medications is now preferred due to its cardioprotective benefits?
A. Sulfonylureas
B. DPP-4 Inhibitors
C. Thiazolidinediones
D. SGLT2 Inhibitors
Answer: D
Conceptual Explanation: SGLT2 inhibitors (e.g., Empagliflozin) have shown significant
benefits in reducing hospitalizations for heart failure and cardiovascular death in diabetic
patients.
6. A patient presents with a persistent, non-productive cough after starting an ACE inhibitor.
What is the physiological mechanism responsible for this side effect?
A. Inhibition of renin release
B. Accumulation of bradykinin in the lungs
C. Direct irritation of the pharyngeal mucosa
PHARMACOLOGY MIDTERM EXAM
QUESTIONS AND ANSWERS 100%
VERIFIED BY EXPERTS. 2026/2027
1. A patient with chronic renal failure requires an adjustment in their medication dosage.
Which pharmacokinetic parameter is most significantly altered in this patient?
A. Absorption
B. Excretion
C. Metabolism
D. Distribution
Answer: B
Conceptual Explanation: Excretion is the primary pharmacokinetic process affected by
renal failure, as the kidneys are responsible for clearing most drugs and metabolites from
the body.
2. Which of the following is a characteristic of a drug with a high volume of distribution (Vd)?
A. It is likely lipid-soluble and penetrates tissues extensively.
B. It is highly bound to plasma proteins like albumin.
C. It remains primarily in the intravascular space.
,D. It has a very short half-life due to rapid renal clearance.
Answer: A
Conceptual Explanation: A high Vd indicates that the drug is distributed extensively into
tissues rather than remaining in the plasma, which is common for lipophilic drugs.
3. An elderly patient is prescribed a drug that is a substrate of the CYP3A4 enzyme system. If
the patient also consumes grapefruit juice, what is the likely outcome?
A. Decreased drug levels due to enzyme induction.
B. Enhanced renal excretion of the drug.
C. No change in drug levels as grapefruit juice only affects CYP2D6.
D. Increased drug levels due to enzyme inhibition.
Answer: D
Conceptual Explanation: Grapefruit juice is a potent inhibitor of the CYP3A4 enzyme in
the intestinal wall, which leads to decreased first-pass metabolism and increased systemic
levels of substrate drugs.
4. When initiating Lisinopril for a patient with hypertension, which laboratory value should
the nurse practitioner monitor most closely?
A. Serum Potassium
B. Serum Sodium
C. Alanine Aminotransferase (ALT)
, D. Platelet count
Answer: A
Conceptual Explanation: ACE inhibitors like Lisinopril block aldosterone secretion, which
can lead to potassium retention and hyperkalemia.
5. A patient is diagnosed with Type 2 Diabetes and has a history of Heart Failure (HFrEF).
Which class of medications is now preferred due to its cardioprotective benefits?
A. Sulfonylureas
B. DPP-4 Inhibitors
C. Thiazolidinediones
D. SGLT2 Inhibitors
Answer: D
Conceptual Explanation: SGLT2 inhibitors (e.g., Empagliflozin) have shown significant
benefits in reducing hospitalizations for heart failure and cardiovascular death in diabetic
patients.
6. A patient presents with a persistent, non-productive cough after starting an ACE inhibitor.
What is the physiological mechanism responsible for this side effect?
A. Inhibition of renin release
B. Accumulation of bradykinin in the lungs
C. Direct irritation of the pharyngeal mucosa
