NSG 533 - Advanced Pharmacology &
Pathophysiology Exam 2026/2027-Edition Real
Exam Questions and 100% verified Answers
Questions with step by step and answer |100% Verified | A+ Graded Review
OVERVIEW: This 104-question practice exam is designed for MSN/DNP students in
Advanced Pharmacology and Pathophysiology. It tests how disease processes alter drug
response and how to make safe clinical decisions.
Coverage: Pharmacokinetics/pharmacodynamics, cardiovascular, CNS/pain/psych,
endocrine/diabetes, infection/immunology/respiratory, renal/GI/hematology, and complex
case studies.
All correct answers are highlight with green and Rationale After.
Section 1: Pharmacokinetics & Pharmacodynamics (Q1-20)
Q1: What determines a drug's volume of distribution?
A) Renal blood flow only
B) Liver enzymes
C) Lipid solubility and plasma protein binding
D) Gastric pH
Correct Answer: C
Rationale: Vd reflects how extensively a drug leaves plasma for tissues. Lipid-soluble, low protein
binding = large Vd. Hydrophilic, highly protein-bound = small Vd.
Q2: Patient on warfarin starts rifampin. What happens to INR?
A) INR increases
B) INR decreases due to CYP induction
C) INR becomes therapeutic faster
D) No change
Correct Answer: B
Rationale: Rifampin is a strong CYP2C9/3A4 and P-gp inducer, accelerating warfarin metabolism,
lowering INR and increasing clot risk.
Q3: Drug undergoing extensive first-pass is best given by which route to avoid it?
A) Sublingual
B) Enteral via NG
C) Oral
D) With grapefruit juice
Correct Answer: A
, Rationale: Sublingual/IV bypass portal circulation and hepatic first-pass, increasing bioavailability.
Q4: Phase II metabolism results in:
A) More water-soluble conjugate for excretion
B) More active metabolite
C) More lipid soluble
D) Increased toxicity always
Correct Answer: A
Rationale: Phase II conjugation (glucuronidation, acetylation, sulfation) adds polar groups for renal
elimination.
Q5: Drug with narrow therapeutic index:
A) Amoxicillin
B) Lisinopril
C) Lithium
D) Metformin
Correct Answer: C
Rationale: Lithium has narrow TI (0.6-1.2). Requires TDM, monitoring for dehydration, NSAID use,
renal function.
Q6: Antidote for acetaminophen overdose?
A) Flumazenil
B) Protamine sulfate
C) N-acetylcysteine (NAC)
D) Naloxone
Correct Answer: C
Rationale: NAC replenishes glutathione to detoxify toxic NAPQI metabolite of acetaminophen. Most
effective within 8 hours.
Q7: CYP3A4 metabolizes approximately:
A) 25% of drugs
B) 100% of drugs
C) 5% of drugs
D) 50-60% of drugs
Correct Answer: D
Rationale: CYP3A4 is most abundant CYP in liver and gut, handling about half of medications.
Q8: Zero-order elimination means:
A) A constant amount eliminated per time regardless of concentration
B) A constant fraction eliminated per time
C) First-order at low doses only
D) Absorption = elimination
Correct Answer: A
Rationale: Zero-order = saturation kinetics. Same amount eliminated per hour (phenytoin, ethanol,
high-dose aspirin).
, Q9: Old FDA Category X means:
A) No risk
B) Fetal risk outweighs benefit - contraindicated
C) Animal risk but human benefit
D) Safe in pregnancy
Correct Answer: B
Rationale: Category X = proven fetal abnormalities, contraindicated in pregnancy. Current labeling
uses narrative risk summaries.
Q10: Example of a prodrug:
A) Losartan active form
B) Amlodipine
C) Enalapril to enalaprilat
D) Metoprolol
Correct Answer: C
Rationale: Enalapril is inactive until liver hydrolyzes it to active enalaprilat, improving oral
bioavailability.
Q11: Elderly have prolonged drug half-life because:
A) Increased CYP activity
B) Increased GFR
C) Decreased hepatic blood flow, decreased GFR, decreased albumin
D) Increased muscle mass
Correct Answer: C
Rationale: Aging reduces liver mass, blood flow, and renal function, plus low albumin increases free
drug.
Q12: P-glycoprotein inhibitor will:
A) Decrease absorption of P-gp substrate
B) Increase absorption and CNS penetration of substrate
C) Increase metabolism
D) No effect
Correct Answer: B
Rationale: P-gp effluxes drugs out. Inhibition increases absorption/BBB penetration. Inducers do
opposite.
Q13: Loading dose formula depends on:
A) Clearance
B) Bioavailability only
C) Half-life only
D) Volume of distribution and target concentration
Correct Answer: D
Rationale: Loading dose = (Vd x Cp)/F. It fills the tank. Maintenance dose depends on clearance.
Q14: Grapefruit juice increases levels of simvastatin by:
A) Inhibiting intestinal CYP3A4 irreversibly
Pathophysiology Exam 2026/2027-Edition Real
Exam Questions and 100% verified Answers
Questions with step by step and answer |100% Verified | A+ Graded Review
OVERVIEW: This 104-question practice exam is designed for MSN/DNP students in
Advanced Pharmacology and Pathophysiology. It tests how disease processes alter drug
response and how to make safe clinical decisions.
Coverage: Pharmacokinetics/pharmacodynamics, cardiovascular, CNS/pain/psych,
endocrine/diabetes, infection/immunology/respiratory, renal/GI/hematology, and complex
case studies.
All correct answers are highlight with green and Rationale After.
Section 1: Pharmacokinetics & Pharmacodynamics (Q1-20)
Q1: What determines a drug's volume of distribution?
A) Renal blood flow only
B) Liver enzymes
C) Lipid solubility and plasma protein binding
D) Gastric pH
Correct Answer: C
Rationale: Vd reflects how extensively a drug leaves plasma for tissues. Lipid-soluble, low protein
binding = large Vd. Hydrophilic, highly protein-bound = small Vd.
Q2: Patient on warfarin starts rifampin. What happens to INR?
A) INR increases
B) INR decreases due to CYP induction
C) INR becomes therapeutic faster
D) No change
Correct Answer: B
Rationale: Rifampin is a strong CYP2C9/3A4 and P-gp inducer, accelerating warfarin metabolism,
lowering INR and increasing clot risk.
Q3: Drug undergoing extensive first-pass is best given by which route to avoid it?
A) Sublingual
B) Enteral via NG
C) Oral
D) With grapefruit juice
Correct Answer: A
, Rationale: Sublingual/IV bypass portal circulation and hepatic first-pass, increasing bioavailability.
Q4: Phase II metabolism results in:
A) More water-soluble conjugate for excretion
B) More active metabolite
C) More lipid soluble
D) Increased toxicity always
Correct Answer: A
Rationale: Phase II conjugation (glucuronidation, acetylation, sulfation) adds polar groups for renal
elimination.
Q5: Drug with narrow therapeutic index:
A) Amoxicillin
B) Lisinopril
C) Lithium
D) Metformin
Correct Answer: C
Rationale: Lithium has narrow TI (0.6-1.2). Requires TDM, monitoring for dehydration, NSAID use,
renal function.
Q6: Antidote for acetaminophen overdose?
A) Flumazenil
B) Protamine sulfate
C) N-acetylcysteine (NAC)
D) Naloxone
Correct Answer: C
Rationale: NAC replenishes glutathione to detoxify toxic NAPQI metabolite of acetaminophen. Most
effective within 8 hours.
Q7: CYP3A4 metabolizes approximately:
A) 25% of drugs
B) 100% of drugs
C) 5% of drugs
D) 50-60% of drugs
Correct Answer: D
Rationale: CYP3A4 is most abundant CYP in liver and gut, handling about half of medications.
Q8: Zero-order elimination means:
A) A constant amount eliminated per time regardless of concentration
B) A constant fraction eliminated per time
C) First-order at low doses only
D) Absorption = elimination
Correct Answer: A
Rationale: Zero-order = saturation kinetics. Same amount eliminated per hour (phenytoin, ethanol,
high-dose aspirin).
, Q9: Old FDA Category X means:
A) No risk
B) Fetal risk outweighs benefit - contraindicated
C) Animal risk but human benefit
D) Safe in pregnancy
Correct Answer: B
Rationale: Category X = proven fetal abnormalities, contraindicated in pregnancy. Current labeling
uses narrative risk summaries.
Q10: Example of a prodrug:
A) Losartan active form
B) Amlodipine
C) Enalapril to enalaprilat
D) Metoprolol
Correct Answer: C
Rationale: Enalapril is inactive until liver hydrolyzes it to active enalaprilat, improving oral
bioavailability.
Q11: Elderly have prolonged drug half-life because:
A) Increased CYP activity
B) Increased GFR
C) Decreased hepatic blood flow, decreased GFR, decreased albumin
D) Increased muscle mass
Correct Answer: C
Rationale: Aging reduces liver mass, blood flow, and renal function, plus low albumin increases free
drug.
Q12: P-glycoprotein inhibitor will:
A) Decrease absorption of P-gp substrate
B) Increase absorption and CNS penetration of substrate
C) Increase metabolism
D) No effect
Correct Answer: B
Rationale: P-gp effluxes drugs out. Inhibition increases absorption/BBB penetration. Inducers do
opposite.
Q13: Loading dose formula depends on:
A) Clearance
B) Bioavailability only
C) Half-life only
D) Volume of distribution and target concentration
Correct Answer: D
Rationale: Loading dose = (Vd x Cp)/F. It fills the tank. Maintenance dose depends on clearance.
Q14: Grapefruit juice increases levels of simvastatin by:
A) Inhibiting intestinal CYP3A4 irreversibly
