ADVANCED PHARMACOLOGY
MASTERY EXAM (NUR 616) QUESTIONS
AND ANSWERS
1. Which pharmacokinetic parameter is primarily affected by a significant decrease in serum
albumin levels in a patient receiving highly protein-bound drugs?
A. Fraction of free drug
B. Metabolism rate
C. Absorption rate
D. Renal filtration rate
Answer: A
Conceptual Explanation: Highly protein-bound drugs rely on albumin. Lower albumin
levels increase the free (active) fraction of the drug, potentially leading to toxicity.
2. In the context of the Cytochrome P450 system, how does a known enzyme inducer affect a
substrate drug?
A. Increases the substrate’s plasma concentration
B. Decreases the substrate’s clearance
,C. Has no effect on the substrate’s half-life
D. Decreases the substrate’s plasma concentration
Answer: D
Conceptual Explanation: Inducers speed up metabolism, leading to faster clearance and
lower plasma levels of the substrate drug.
3. A patient with a history of heart failure is prescribed a Beta-Blocker. What is the primary
physiological rationale for this in chronic management?
A. To block the deleterious effects of chronic sympathetic nervous system activation
B. To increase heart rate and cardiac output
C. To induce acute peripheral vasodilation
D. To increase myocardial oxygen demand
Answer: A
Conceptual Explanation: In heart failure, chronic SNS activation leads to remodeling;
beta-blockers mitigate this effect to improve long-term survival.
4. Which mechanism of action is characteristic of ACE inhibitors in treating hypertension?
A. Inhibiting the breakdown of bradykinin
B. Increasing the conversion of Angiotensin I to Angiotensin II
C. Directly blocking the AT1 receptor
, D. Stimulating aldosterone secretion
Answer: A
Conceptual Explanation: ACE inhibitors inhibit the enzyme that breaks down bradykinin,
which contributes to vasodilation but also the side effect of a dry cough.
5. When prescribing Amiodarone, which organ system requires baseline and periodic
monitoring due to potential toxicity?
A. Musculoskeletal system
B. Pulmonary system
C. Pancreas
D. Auditory system
Answer: B
Conceptual Explanation: Amiodarone is associated with pulmonary fibrosis, a potentially
fatal complication, requiring baseline chest X-rays and PFTs.
6. What is the clinical significance of a drug with a high volume of distribution (Vd)?
A. The drug remains primarily in the intravascular space
B. The drug is likely highly hydrophilic
C. The drug is extensively distributed into tissues
D. The drug will be cleared very rapidly by the kidneys
MASTERY EXAM (NUR 616) QUESTIONS
AND ANSWERS
1. Which pharmacokinetic parameter is primarily affected by a significant decrease in serum
albumin levels in a patient receiving highly protein-bound drugs?
A. Fraction of free drug
B. Metabolism rate
C. Absorption rate
D. Renal filtration rate
Answer: A
Conceptual Explanation: Highly protein-bound drugs rely on albumin. Lower albumin
levels increase the free (active) fraction of the drug, potentially leading to toxicity.
2. In the context of the Cytochrome P450 system, how does a known enzyme inducer affect a
substrate drug?
A. Increases the substrate’s plasma concentration
B. Decreases the substrate’s clearance
,C. Has no effect on the substrate’s half-life
D. Decreases the substrate’s plasma concentration
Answer: D
Conceptual Explanation: Inducers speed up metabolism, leading to faster clearance and
lower plasma levels of the substrate drug.
3. A patient with a history of heart failure is prescribed a Beta-Blocker. What is the primary
physiological rationale for this in chronic management?
A. To block the deleterious effects of chronic sympathetic nervous system activation
B. To increase heart rate and cardiac output
C. To induce acute peripheral vasodilation
D. To increase myocardial oxygen demand
Answer: A
Conceptual Explanation: In heart failure, chronic SNS activation leads to remodeling;
beta-blockers mitigate this effect to improve long-term survival.
4. Which mechanism of action is characteristic of ACE inhibitors in treating hypertension?
A. Inhibiting the breakdown of bradykinin
B. Increasing the conversion of Angiotensin I to Angiotensin II
C. Directly blocking the AT1 receptor
, D. Stimulating aldosterone secretion
Answer: A
Conceptual Explanation: ACE inhibitors inhibit the enzyme that breaks down bradykinin,
which contributes to vasodilation but also the side effect of a dry cough.
5. When prescribing Amiodarone, which organ system requires baseline and periodic
monitoring due to potential toxicity?
A. Musculoskeletal system
B. Pulmonary system
C. Pancreas
D. Auditory system
Answer: B
Conceptual Explanation: Amiodarone is associated with pulmonary fibrosis, a potentially
fatal complication, requiring baseline chest X-rays and PFTs.
6. What is the clinical significance of a drug with a high volume of distribution (Vd)?
A. The drug remains primarily in the intravascular space
B. The drug is likely highly hydrophilic
C. The drug is extensively distributed into tissues
D. The drug will be cleared very rapidly by the kidneys
