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NURS 6521 Advanced Pharmacology Midterm Comprehensive
Examination | Academic Year 2026/2027 Original Practice Questions
with Verified Answers & Correct Rationales
Exam Blueprint
Content Area
Principles of Pharmacology (Pharmacokinetics, Pharmacodynamics)
Pharmacogenomics & Drug Interactions
Autonomic Nervous System Pharmacology
Cardiovascular & Renal Pharmacology
Endocrine Pharmacology
Antimicrobial Pharmacology
Central Nervous System Pharmacology
Anti-inflammatory & Immunopharmacology
Oncology Pharmacology
Toxicology & Antidotes
Special Populations (Pregnancy, Pediatrics, Geriatrics)
,https://www.stuvia.com/user/performance
Content Area
Clinical Case Scenarios & Prescribing
SECTION 1: Principles of Pharmacology (Questions)
1. What is the primary factor determining the rate of drug
absorption from the gastrointestinal tract?
A. Molecular weight of the drug
B. Formulation and dissolution rate of the drug
C. Volume of distribution
D. Protein binding affinity
Answer: B
Rationale: The rate of GI absorption is primarily determined by
the drug's formulation and dissolution rate. Factors like
ionization state (pKa), gastric pH, and GI motility also affect
absorption, but dissolution rate is a key determinant of how
quickly a drug becomes available for absorption.
2. A drug has a half-life of 6 hours. If a patient takes a single
dose, approximately what percentage of the drug remains in
the body after 18 hours?
,https://www.stuvia.com/user/performance
A. 50%
B. 25%
C. 12.5%
D. 6.25%
Answer: C
Rationale: After 18 hours (3 half-lives), the remaining drug is
50% × 50% × 50% = 12.5%. Each half-life reduces the drug
concentration by 50%.
3. What does the term "first-pass effect" refer to?
A. The first dose of a drug being more effective
B. Hepatic metabolism of a drug before it reaches systemic
circulation
C. Renal excretion of the drug after the first dose
D. Drug absorption from the stomach
Answer: B
Rationale: The first-pass effect (presystemic metabolism) refers
to the metabolism of a drug in the liver (and sometimes the gut
wall) after oral administration, before it reaches systemic
circulation. This reduces bioavailability.
4. Which route of administration bypasses the first-pass
effect?
, https://www.stuvia.com/user/performance
A. Oral
B. Rectal (partially)
C. Intravenous
D. Sublingual
Answer: C
Rationale: Intravenous administration delivers the drug directly
into systemic circulation, completely bypassing the first-pass
effect. Sublingual and rectal routes partially bypass first-pass
metabolism.
5. What is bioavailability?
A. The rate of drug excretion
B. The fraction of an administered dose that reaches systemic
circulation unchanged
C. The degree of protein binding
D. The volume of distribution
Answer: B
Rationale: Bioavailability is the fraction of an administered dose
that reaches systemic circulation in its active form. IV drugs
have 100% bioavailability; oral drugs may have less due to
incomplete absorption and first-pass metabolism.
NURS 6521 Advanced Pharmacology Midterm Comprehensive
Examination | Academic Year 2026/2027 Original Practice Questions
with Verified Answers & Correct Rationales
Exam Blueprint
Content Area
Principles of Pharmacology (Pharmacokinetics, Pharmacodynamics)
Pharmacogenomics & Drug Interactions
Autonomic Nervous System Pharmacology
Cardiovascular & Renal Pharmacology
Endocrine Pharmacology
Antimicrobial Pharmacology
Central Nervous System Pharmacology
Anti-inflammatory & Immunopharmacology
Oncology Pharmacology
Toxicology & Antidotes
Special Populations (Pregnancy, Pediatrics, Geriatrics)
,https://www.stuvia.com/user/performance
Content Area
Clinical Case Scenarios & Prescribing
SECTION 1: Principles of Pharmacology (Questions)
1. What is the primary factor determining the rate of drug
absorption from the gastrointestinal tract?
A. Molecular weight of the drug
B. Formulation and dissolution rate of the drug
C. Volume of distribution
D. Protein binding affinity
Answer: B
Rationale: The rate of GI absorption is primarily determined by
the drug's formulation and dissolution rate. Factors like
ionization state (pKa), gastric pH, and GI motility also affect
absorption, but dissolution rate is a key determinant of how
quickly a drug becomes available for absorption.
2. A drug has a half-life of 6 hours. If a patient takes a single
dose, approximately what percentage of the drug remains in
the body after 18 hours?
,https://www.stuvia.com/user/performance
A. 50%
B. 25%
C. 12.5%
D. 6.25%
Answer: C
Rationale: After 18 hours (3 half-lives), the remaining drug is
50% × 50% × 50% = 12.5%. Each half-life reduces the drug
concentration by 50%.
3. What does the term "first-pass effect" refer to?
A. The first dose of a drug being more effective
B. Hepatic metabolism of a drug before it reaches systemic
circulation
C. Renal excretion of the drug after the first dose
D. Drug absorption from the stomach
Answer: B
Rationale: The first-pass effect (presystemic metabolism) refers
to the metabolism of a drug in the liver (and sometimes the gut
wall) after oral administration, before it reaches systemic
circulation. This reduces bioavailability.
4. Which route of administration bypasses the first-pass
effect?
, https://www.stuvia.com/user/performance
A. Oral
B. Rectal (partially)
C. Intravenous
D. Sublingual
Answer: C
Rationale: Intravenous administration delivers the drug directly
into systemic circulation, completely bypassing the first-pass
effect. Sublingual and rectal routes partially bypass first-pass
metabolism.
5. What is bioavailability?
A. The rate of drug excretion
B. The fraction of an administered dose that reaches systemic
circulation unchanged
C. The degree of protein binding
D. The volume of distribution
Answer: B
Rationale: Bioavailability is the fraction of an administered dose
that reaches systemic circulation in its active form. IV drugs
have 100% bioavailability; oral drugs may have less due to
incomplete absorption and first-pass metabolism.
