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NR 293 Pharmacology Exam 1 | Actual Exam Questions with
Verified Answers & Detailed Rationales | 2026–2027 Updated
Chamberlain Nursing Pharmacology Study Guide | Grade A
Question 1
Pharmacology is best defined as:
A. The study of how the body affects drugs
B. The science of drugs and substances that affect the body's structure or function
C. The study of drug metabolism in the liver
D. The process of administering medications
CORRECT ANSWER: B. The science of drugs and substances that affect the
body's structure or function
Rationale: Pharmacology is the broad science of drugs and their interactions with living
systems, affecting the body's structure or function.
Question 2
Pharmacokinetics includes which processes? (Select all that apply.)
A. Absorption
B. Distribution
C. Metabolism
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D. Excretion
CORRECT ANSWER: A, B, C, D
Rationale: Pharmacokinetics describes what the body does to a drug and includes four
processes: absorption, distribution, metabolism, and excretion (ADME).
Question 3
Bioavailability refers to:
A. The time it takes for a drug to be absorbed
B. The percentage of a drug that reaches the bloodstream
C. The amount of drug bound to proteins
D. The rate of drug excretion
CORRECT ANSWER: B. The percentage of a drug that reaches the bloodstream
Rationale: Bioavailability is the fraction of an administered dose that reaches the
systemic circulation unchanged.
Question 4
The first-pass effect refers to:
A. The first dose of a medication
B. Oral drugs passing through the liver where some are inactivated, reducing
bioavailability
C. The initial binding of a drug to receptors
D. The rapid distribution of a drug to the brain
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CORRECT ANSWER: B. Oral drugs passing through the liver where some are
inactivated, reducing bioavailability
Rationale: The first-pass effect occurs when orally administered drugs are absorbed from
the GI tract and transported via the portal vein to the liver, where they are partially
metabolized before reaching systemic circulation.
Question 5
Drugs distribute most rapidly to organs with high blood flow, such as: (Select all
that apply.)
A. Heart
B. Liver
C. Kidneys
D. Brain
CORRECT ANSWER: A, B, C, D
Rationale: Drugs initially distribute to tissues with high blood flow, including the heart,
liver, kidneys, and brain. Distribution to muscle, skin, and fat is slower.
Question 6
Drug metabolism occurs primarily in the:
A. Kidneys
B. Liver
C. Lungs
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D. Bloodstream
CORRECT ANSWER: B. Liver
Rationale: The liver is the primary site of drug metabolism, utilizing cytochrome P-450
enzymes. Enzyme activity can affect drug interactions and metabolism rates.
Question 7
The primary route of drug excretion is through the:
A. Liver (bile)
B. Lungs
C. Kidneys
D. Skin
CORRECT ANSWER: C. Kidneys
Rationale: Most drugs and their metabolites are eliminated from the body through the
kidneys via urine. Poor kidney function increases the risk of drug toxicity.
Question 8
Half-life is defined as the time required to:
A. Start seeing a therapeutic effect
B. Reach maximum drug concentration
C. Eliminate 50% of a drug from the body
D. Metabolize a drug completely
CORRECT ANSWER: C. Eliminate 50% of a drug from the body
NR 293 Pharmacology Exam 1 | Actual Exam Questions with
Verified Answers & Detailed Rationales | 2026–2027 Updated
Chamberlain Nursing Pharmacology Study Guide | Grade A
Question 1
Pharmacology is best defined as:
A. The study of how the body affects drugs
B. The science of drugs and substances that affect the body's structure or function
C. The study of drug metabolism in the liver
D. The process of administering medications
CORRECT ANSWER: B. The science of drugs and substances that affect the
body's structure or function
Rationale: Pharmacology is the broad science of drugs and their interactions with living
systems, affecting the body's structure or function.
Question 2
Pharmacokinetics includes which processes? (Select all that apply.)
A. Absorption
B. Distribution
C. Metabolism
,2|Page
D. Excretion
CORRECT ANSWER: A, B, C, D
Rationale: Pharmacokinetics describes what the body does to a drug and includes four
processes: absorption, distribution, metabolism, and excretion (ADME).
Question 3
Bioavailability refers to:
A. The time it takes for a drug to be absorbed
B. The percentage of a drug that reaches the bloodstream
C. The amount of drug bound to proteins
D. The rate of drug excretion
CORRECT ANSWER: B. The percentage of a drug that reaches the bloodstream
Rationale: Bioavailability is the fraction of an administered dose that reaches the
systemic circulation unchanged.
Question 4
The first-pass effect refers to:
A. The first dose of a medication
B. Oral drugs passing through the liver where some are inactivated, reducing
bioavailability
C. The initial binding of a drug to receptors
D. The rapid distribution of a drug to the brain
,3|Page
CORRECT ANSWER: B. Oral drugs passing through the liver where some are
inactivated, reducing bioavailability
Rationale: The first-pass effect occurs when orally administered drugs are absorbed from
the GI tract and transported via the portal vein to the liver, where they are partially
metabolized before reaching systemic circulation.
Question 5
Drugs distribute most rapidly to organs with high blood flow, such as: (Select all
that apply.)
A. Heart
B. Liver
C. Kidneys
D. Brain
CORRECT ANSWER: A, B, C, D
Rationale: Drugs initially distribute to tissues with high blood flow, including the heart,
liver, kidneys, and brain. Distribution to muscle, skin, and fat is slower.
Question 6
Drug metabolism occurs primarily in the:
A. Kidneys
B. Liver
C. Lungs
, 4|Page
D. Bloodstream
CORRECT ANSWER: B. Liver
Rationale: The liver is the primary site of drug metabolism, utilizing cytochrome P-450
enzymes. Enzyme activity can affect drug interactions and metabolism rates.
Question 7
The primary route of drug excretion is through the:
A. Liver (bile)
B. Lungs
C. Kidneys
D. Skin
CORRECT ANSWER: C. Kidneys
Rationale: Most drugs and their metabolites are eliminated from the body through the
kidneys via urine. Poor kidney function increases the risk of drug toxicity.
Question 8
Half-life is defined as the time required to:
A. Start seeing a therapeutic effect
B. Reach maximum drug concentration
C. Eliminate 50% of a drug from the body
D. Metabolize a drug completely
CORRECT ANSWER: C. Eliminate 50% of a drug from the body
