NR565 ADVANCED PHARMACOLOGY
COMPREHENSIVE EXAM QUESTIONS
AND VERIFIED ANSWERS |GRADE
A+|CHAMBERLAIN COLLEGE
1. A patient with heart failure is prescribed Digoxin. Which electrolyte imbalance significantly
increases the risk of digoxin toxicity?
A. Hyperkalemia
B. Hypokalemia
C. Hyponatremia
D. Hypernatremia
Answer: B
Conceptual Explanation: Hypokalemia sensitizes the myocardium to digoxin, increasing
the risk of toxicity even at therapeutic serum levels.
2. Which mechanism of action describes how ACE inhibitors, such as Lisinopril, lower blood
pressure?
A. Inhibiting the conversion of Angiotensin I to Angiotensin II
B. Directly blocking calcium channels in vascular smooth muscle
C. Blocking the binding of Angiotensin II to its receptors
,D. Increasing the secretion of aldosterone
Answer: A
Conceptual Explanation: ACE inhibitors prevent the conversion of angiotensin I to
angiotensin II, which is a potent vasoconstrictor and stimulator of aldosterone.
3. According to the Beers Criteria, which medication class should be avoided in elderly
patients due to the high risk of orthostatic hypotension and CNS effects?
A. SSRIs
B. Tricyclic Antidepressants
C. Proton Pump Inhibitors
D. Second-generation Antihistamines
Answer: B
Conceptual Explanation: Tricyclic antidepressants (TCAs) are highly anticholinergic and
increase the risk of orthostatic hypotension and falls in the elderly.
4. A patient is taking Warfarin for atrial fibrillation. What is the target INR range for this
patient?
A. 1.0 to 2.0
B. 2.0 to 3.0
C. 3.0 to 4.0
D. 0.5 to 1.5
, Answer: B
Conceptual Explanation: For most indications including atrial fibrillation, the therapeutic
INR range for warfarin is 2.0 to 3.0.
5. Which antibiotic is the first-line treatment for an adult with uncomplicated Community-
Acquired Pneumonia (CAP) and no comorbidities or recent antibiotic use?
A. Amoxicillin or Doxycycline
B. Ciprofloxacin
C. Vancomycin
D. Gentamicin
Answer: A
Conceptual Explanation: Current guidelines suggest high-dose amoxicillin or doxycycline
as first-line for healthy adults with uncomplicated CAP.
6. Which pharmacokinetic process is most affected by the ‘first-pass effect’?
A. Distribution
B. Absorption/Metabolism
C. Excretion
D. Protein binding
Answer: B
COMPREHENSIVE EXAM QUESTIONS
AND VERIFIED ANSWERS |GRADE
A+|CHAMBERLAIN COLLEGE
1. A patient with heart failure is prescribed Digoxin. Which electrolyte imbalance significantly
increases the risk of digoxin toxicity?
A. Hyperkalemia
B. Hypokalemia
C. Hyponatremia
D. Hypernatremia
Answer: B
Conceptual Explanation: Hypokalemia sensitizes the myocardium to digoxin, increasing
the risk of toxicity even at therapeutic serum levels.
2. Which mechanism of action describes how ACE inhibitors, such as Lisinopril, lower blood
pressure?
A. Inhibiting the conversion of Angiotensin I to Angiotensin II
B. Directly blocking calcium channels in vascular smooth muscle
C. Blocking the binding of Angiotensin II to its receptors
,D. Increasing the secretion of aldosterone
Answer: A
Conceptual Explanation: ACE inhibitors prevent the conversion of angiotensin I to
angiotensin II, which is a potent vasoconstrictor and stimulator of aldosterone.
3. According to the Beers Criteria, which medication class should be avoided in elderly
patients due to the high risk of orthostatic hypotension and CNS effects?
A. SSRIs
B. Tricyclic Antidepressants
C. Proton Pump Inhibitors
D. Second-generation Antihistamines
Answer: B
Conceptual Explanation: Tricyclic antidepressants (TCAs) are highly anticholinergic and
increase the risk of orthostatic hypotension and falls in the elderly.
4. A patient is taking Warfarin for atrial fibrillation. What is the target INR range for this
patient?
A. 1.0 to 2.0
B. 2.0 to 3.0
C. 3.0 to 4.0
D. 0.5 to 1.5
, Answer: B
Conceptual Explanation: For most indications including atrial fibrillation, the therapeutic
INR range for warfarin is 2.0 to 3.0.
5. Which antibiotic is the first-line treatment for an adult with uncomplicated Community-
Acquired Pneumonia (CAP) and no comorbidities or recent antibiotic use?
A. Amoxicillin or Doxycycline
B. Ciprofloxacin
C. Vancomycin
D. Gentamicin
Answer: A
Conceptual Explanation: Current guidelines suggest high-dose amoxicillin or doxycycline
as first-line for healthy adults with uncomplicated CAP.
6. Which pharmacokinetic process is most affected by the ‘first-pass effect’?
A. Distribution
B. Absorption/Metabolism
C. Excretion
D. Protein binding
Answer: B
