NR-565 ADVANCED PHARMACOLOGY FUNDAMENTALS
MIDTERM EXAM | QUESTIONS AND 100% CORRECT
ANSWERS WITH RATIONALES | LATEST UPDATE
GRADED A+
1. Which of the following drugs is a selective beta-1 adrenergic blocker?
A. Propranolol
B. Metoprolol
C. Labetalol
D. Carvedilol
Answer: B. Metoprolol
Rationale: Metoprolol selectively blocks beta-1 receptors in the heart, reducing heart rate
and contractility without significant beta-2 blockade.
2. A patient receiving warfarin therapy requires monitoring of which lab value?
A. INR
B. PT
C. aPTT
D. Platelet count
Answer: A. INR
Rationale: INR (International Normalized Ratio) standardizes PT to monitor warfarin
anticoagulation efficacy and safety.
3. Which of the following antibiotics is bactericidal and inhibits cell wall synthesis?
A. Azithromycin
B. Vancomycin
C. Tetracycline
D. Erythromycin
Answer: B. Vancomycin
Rationale: Vancomycin inhibits bacterial cell wall synthesis, leading to cell death
(bactericidal), unlike tetracyclines or macrolides which are bacteriostatic.
4. Which neurotransmitter is primarily involved in the parasympathetic nervous
system?
A. Norepinephrine
B. Dopamine
C. Acetylcholine
D. Serotonin
,Answer: C. Acetylcholine
Rationale: Acetylcholine is the main neurotransmitter of the parasympathetic nervous system,
responsible for “rest-and-digest” responses.
5. A patient on digoxin presents with nausea, vomiting, and visual disturbances. What is
the most likely cause?
A. Electrolyte imbalance
B. Digoxin toxicity
C. Hypotension
D. Bradycardia
Answer: B. Digoxin toxicity
Rationale: Digoxin toxicity often presents with gastrointestinal and visual symptoms and
requires serum digoxin level monitoring.
6. Which class of drugs is most appropriate for acute asthma exacerbation?
A. Inhaled corticosteroids
B. Long-acting beta-2 agonists
C. Short-acting beta-2 agonists
D. Leukotriene receptor antagonists
Answer: C. Short-acting beta-2 agonists
Rationale: Short-acting beta-2 agonists (like albuterol) provide rapid bronchodilation for
acute asthma attacks.
7. Which of the following is a common side effect of ACE inhibitors?
A. Hyperkalemia
B. Hypokalemia
C. Tachycardia
D. Edema
Answer: A. Hyperkalemia
Rationale: ACE inhibitors can increase potassium levels by reducing aldosterone-mediated
potassium excretion.
8. The mechanism of action of furosemide is primarily:
A. Inhibition of Na⁺/K⁺/2Cl⁻ cotransporter in the loop of Henle
B. Blockade of distal tubule Na⁺ channels
C. Aldosterone receptor antagonism
D. Osmotic diuresis in proximal tubule
Answer: A. Inhibition of Na⁺/K⁺/2Cl⁻ cotransporter in the loop of Henle
Rationale: Loop diuretics like furosemide inhibit this transporter, causing potent diuresis and
electrolyte loss.
9. Which of the following medications is used for neuropathic pain management?
A. Ibuprofen
B. Gabapentin
,C. Morphine
D. Acetaminophen
Answer: B. Gabapentin
Rationale: Gabapentin modulates calcium channels in neurons, making it effective for
neuropathic pain, unlike traditional NSAIDs or opioids.
10. Which anticoagulant is safe to use during pregnancy?
A. Warfarin
B. Heparin
C. Dabigatran
D. Rivaroxaban
Answer: B. Heparin
Rationale: Heparin does not cross the placenta, making it safe for anticoagulation during
pregnancy, unlike warfarin.
11. Which opioid receptor is primarily responsible for analgesia?
A. Kappa
B. Delta
C. Mu
D. Sigma
Answer: C. Mu
Rationale: Mu opioid receptors mediate analgesia, euphoria, and respiratory depression;
kappa receptors contribute more to sedation.
12. Which drug class is first-line for Type 2 Diabetes mellitus?
A. Sulfonylureas
B. Metformin
C. DPP-4 inhibitors
D. Insulin
Answer: B. Metformin
Rationale: Metformin improves insulin sensitivity and reduces hepatic glucose production,
making it first-line therapy for type 2 diabetes.
13. The antidote for acetaminophen overdose is:
A. Naloxone
B. N-acetylcysteine
C. Flumazenil
D. Vitamin K
Answer: B. N-acetylcysteine
Rationale: N-acetylcysteine replenishes glutathione, preventing hepatic damage from
acetaminophen toxicity.
, 14. Which drug is a non-selective beta blocker with alpha-1 blocking properties?
A. Metoprolol
B. Propranolol
C. Carvedilol
D. Atenolol
Answer: C. Carvedilol
Rationale: Carvedilol blocks both beta and alpha-1 receptors, providing both heart rate
control and vasodilation.
15. A patient on statin therapy develops muscle pain. Which lab test is most appropriate
to monitor?
A. ALT
B. AST
C. Creatine kinase (CK)
D. Bilirubin
Answer: C. Creatine kinase (CK)
Rationale: Elevated CK indicates statin-induced myopathy or rhabdomyolysis.
16. Which diuretic class is most appropriate for mild hypertension and edema?
A. Loop diuretics
B. Thiazide diuretics
C. Potassium-sparing diuretics
D. Osmotic diuretics
Answer: B. Thiazide diuretics
Rationale: Thiazides reduce blood pressure and mild edema by promoting sodium and water
excretion in the distal tubule.
17. Which class of drugs is used for both hypertension and heart failure management?
A. ACE inhibitors
B. Beta-2 agonists
C. Calcium channel blockers (dihydropyridines)
D. Loop diuretics
Answer: A. ACE inhibitors
Rationale: ACE inhibitors reduce afterload and prevent cardiac remodeling in heart failure,
in addition to lowering blood pressure.
18. Which antibiotic can cause “red man syndrome” if infused too rapidly?
A. Vancomycin
B. Penicillin G
C. Ciprofloxacin
D. Azithromycin
MIDTERM EXAM | QUESTIONS AND 100% CORRECT
ANSWERS WITH RATIONALES | LATEST UPDATE
GRADED A+
1. Which of the following drugs is a selective beta-1 adrenergic blocker?
A. Propranolol
B. Metoprolol
C. Labetalol
D. Carvedilol
Answer: B. Metoprolol
Rationale: Metoprolol selectively blocks beta-1 receptors in the heart, reducing heart rate
and contractility without significant beta-2 blockade.
2. A patient receiving warfarin therapy requires monitoring of which lab value?
A. INR
B. PT
C. aPTT
D. Platelet count
Answer: A. INR
Rationale: INR (International Normalized Ratio) standardizes PT to monitor warfarin
anticoagulation efficacy and safety.
3. Which of the following antibiotics is bactericidal and inhibits cell wall synthesis?
A. Azithromycin
B. Vancomycin
C. Tetracycline
D. Erythromycin
Answer: B. Vancomycin
Rationale: Vancomycin inhibits bacterial cell wall synthesis, leading to cell death
(bactericidal), unlike tetracyclines or macrolides which are bacteriostatic.
4. Which neurotransmitter is primarily involved in the parasympathetic nervous
system?
A. Norepinephrine
B. Dopamine
C. Acetylcholine
D. Serotonin
,Answer: C. Acetylcholine
Rationale: Acetylcholine is the main neurotransmitter of the parasympathetic nervous system,
responsible for “rest-and-digest” responses.
5. A patient on digoxin presents with nausea, vomiting, and visual disturbances. What is
the most likely cause?
A. Electrolyte imbalance
B. Digoxin toxicity
C. Hypotension
D. Bradycardia
Answer: B. Digoxin toxicity
Rationale: Digoxin toxicity often presents with gastrointestinal and visual symptoms and
requires serum digoxin level monitoring.
6. Which class of drugs is most appropriate for acute asthma exacerbation?
A. Inhaled corticosteroids
B. Long-acting beta-2 agonists
C. Short-acting beta-2 agonists
D. Leukotriene receptor antagonists
Answer: C. Short-acting beta-2 agonists
Rationale: Short-acting beta-2 agonists (like albuterol) provide rapid bronchodilation for
acute asthma attacks.
7. Which of the following is a common side effect of ACE inhibitors?
A. Hyperkalemia
B. Hypokalemia
C. Tachycardia
D. Edema
Answer: A. Hyperkalemia
Rationale: ACE inhibitors can increase potassium levels by reducing aldosterone-mediated
potassium excretion.
8. The mechanism of action of furosemide is primarily:
A. Inhibition of Na⁺/K⁺/2Cl⁻ cotransporter in the loop of Henle
B. Blockade of distal tubule Na⁺ channels
C. Aldosterone receptor antagonism
D. Osmotic diuresis in proximal tubule
Answer: A. Inhibition of Na⁺/K⁺/2Cl⁻ cotransporter in the loop of Henle
Rationale: Loop diuretics like furosemide inhibit this transporter, causing potent diuresis and
electrolyte loss.
9. Which of the following medications is used for neuropathic pain management?
A. Ibuprofen
B. Gabapentin
,C. Morphine
D. Acetaminophen
Answer: B. Gabapentin
Rationale: Gabapentin modulates calcium channels in neurons, making it effective for
neuropathic pain, unlike traditional NSAIDs or opioids.
10. Which anticoagulant is safe to use during pregnancy?
A. Warfarin
B. Heparin
C. Dabigatran
D. Rivaroxaban
Answer: B. Heparin
Rationale: Heparin does not cross the placenta, making it safe for anticoagulation during
pregnancy, unlike warfarin.
11. Which opioid receptor is primarily responsible for analgesia?
A. Kappa
B. Delta
C. Mu
D. Sigma
Answer: C. Mu
Rationale: Mu opioid receptors mediate analgesia, euphoria, and respiratory depression;
kappa receptors contribute more to sedation.
12. Which drug class is first-line for Type 2 Diabetes mellitus?
A. Sulfonylureas
B. Metformin
C. DPP-4 inhibitors
D. Insulin
Answer: B. Metformin
Rationale: Metformin improves insulin sensitivity and reduces hepatic glucose production,
making it first-line therapy for type 2 diabetes.
13. The antidote for acetaminophen overdose is:
A. Naloxone
B. N-acetylcysteine
C. Flumazenil
D. Vitamin K
Answer: B. N-acetylcysteine
Rationale: N-acetylcysteine replenishes glutathione, preventing hepatic damage from
acetaminophen toxicity.
, 14. Which drug is a non-selective beta blocker with alpha-1 blocking properties?
A. Metoprolol
B. Propranolol
C. Carvedilol
D. Atenolol
Answer: C. Carvedilol
Rationale: Carvedilol blocks both beta and alpha-1 receptors, providing both heart rate
control and vasodilation.
15. A patient on statin therapy develops muscle pain. Which lab test is most appropriate
to monitor?
A. ALT
B. AST
C. Creatine kinase (CK)
D. Bilirubin
Answer: C. Creatine kinase (CK)
Rationale: Elevated CK indicates statin-induced myopathy or rhabdomyolysis.
16. Which diuretic class is most appropriate for mild hypertension and edema?
A. Loop diuretics
B. Thiazide diuretics
C. Potassium-sparing diuretics
D. Osmotic diuretics
Answer: B. Thiazide diuretics
Rationale: Thiazides reduce blood pressure and mild edema by promoting sodium and water
excretion in the distal tubule.
17. Which class of drugs is used for both hypertension and heart failure management?
A. ACE inhibitors
B. Beta-2 agonists
C. Calcium channel blockers (dihydropyridines)
D. Loop diuretics
Answer: A. ACE inhibitors
Rationale: ACE inhibitors reduce afterload and prevent cardiac remodeling in heart failure,
in addition to lowering blood pressure.
18. Which antibiotic can cause “red man syndrome” if infused too rapidly?
A. Vancomycin
B. Penicillin G
C. Ciprofloxacin
D. Azithromycin
