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NR 293 COMPREHENSIVE EXAM 3 PHARMACOLOGY FOR
NURSING 2026/2027 COMPLETE (150) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH DETAILED
RATIONALES.
PHARMACOLOGY
Prepare effectively for the NR 293 Exam 3: Pharmacology for Nursing Practice with this
focused study resource. It supports review of medication classes, pharmacokinetics,
pharmacodynamics, therapeutic effects, adverse reactions, drug interactions, and
safe medication administration. Use the material to reinforce your pharmacology
knowledge, review high-yield concepts, and identify areas that may require additional
study. This resource is suited for nursing students, NR 293 learners, and candidates
preparing for Exam 3 in Pharmacology for Nursing Practice.
MULTIPLE CHOICE.
SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS (Questions 1–
15)
1. Which term describes what the BODY does to the drug?
(A) Pharmacodynamics
(B) Pharmacotherapeutics
(C) Pharmacokinetics
(D) Pharmacognosy
Answer: (C) Pharmacokinetics
Rationale: Pharmacokinetics is the study of what the body does to the drug,
including the processes of absorption, distribution, metabolism, and
excretion (ADME). Pharmacodynamics is what the drug does to the body.
2. Which term describes what the DRUG does to the body?
(A) Pharmacokinetics
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(B) Pharmacodynamics
(C) Pharmacotherapeutics
(D) Pharmacognosy
Answer: (B) Pharmacodynamics
Rationale: Pharmacodynamics is the study of what the drug does to the
body—the biochemical and physiological effects of drugs and their
mechanisms of action.
3. The "first-pass effect" refers to:
(A) The drug being metabolized by the liver before reaching systemic
circulation
(B) The drug binding to plasma proteins
(C) The drug being excreted by the kidneys
(D) The drug crossing the blood-brain barrier
Answer: (A) The drug being metabolized by the liver before reaching
systemic circulation
Rationale: The first-pass effect refers to the metabolism of an oral drug by the
liver before it reaches systemic circulation, reducing bioavailability.
4. Bioavailability is defined as:
(A) The time it takes for a drug to reach its maximum therapeutic response
(B) The amount of the drug that is actually available after being metabolized
(C) The time it takes for a drug to elicit a therapeutic response
(D) The time a drug concentration is sufficient to elicit a response
Answer: (B) The amount of the drug that is actually available after being
metabolized
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Rationale: Bioavailability is the extent of drug absorption for a given drug and
route—the amount of active drug that reaches systemic circulation.
5. What is the term for the time it takes for a drug to reach its maximum
therapeutic response?
(A) Onset
(B) Duration
(C) Peak
(D) Half-life
Answer: (C) Peak
Rationale: Peak is the time it takes for a drug to reach its maximum
therapeutic response. Onset is the time to first response; duration is how long
the response lasts.
6. The time it takes for one-half of the original amount of a drug to leave
the body is called:
(A) Onset
(B) Peak
(C) Half-life
(D) Duration
Answer: (C) Half-life
Rationale: Half-life is the time required for the serum concentration of a drug
to decrease by 50%. It helps determine dosing intervals.
7. A drug that binds to a receptor and produces a response is called a(n):
(A) Antagonist
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(B) Agonist
(C) Enzyme
(D) Inhibitor
Answer: (B) Agonist
Rationale: An agonist is a drug that binds to a receptor and produces a
response. An antagonist binds but produces no response.
8. Which route of administration has the FASTEST onset of action?
(A) Oral
(B) Subcutaneous
(C) Intramuscular
(D) Intravenous
Answer: (D) Intravenous
Rationale: Intravenous administration delivers the drug directly into the
bloodstream, providing the fastest onset of action. Oral, subcutaneous, and
intramuscular routes require absorption before the drug reaches systemic
circulation.
9. A narrow therapeutic index means:
(A) The drug is very safe and does not require monitoring
(B) There is a small difference between the effective and toxic dose
(C) The drug has a very long half-life
(D) The drug is excreted rapidly
Answer: (B) There is a small difference between the effective and toxic
dose
NR 293 COMPREHENSIVE EXAM 3 PHARMACOLOGY FOR
NURSING 2026/2027 COMPLETE (150) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH DETAILED
RATIONALES.
PHARMACOLOGY
Prepare effectively for the NR 293 Exam 3: Pharmacology for Nursing Practice with this
focused study resource. It supports review of medication classes, pharmacokinetics,
pharmacodynamics, therapeutic effects, adverse reactions, drug interactions, and
safe medication administration. Use the material to reinforce your pharmacology
knowledge, review high-yield concepts, and identify areas that may require additional
study. This resource is suited for nursing students, NR 293 learners, and candidates
preparing for Exam 3 in Pharmacology for Nursing Practice.
MULTIPLE CHOICE.
SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS (Questions 1–
15)
1. Which term describes what the BODY does to the drug?
(A) Pharmacodynamics
(B) Pharmacotherapeutics
(C) Pharmacokinetics
(D) Pharmacognosy
Answer: (C) Pharmacokinetics
Rationale: Pharmacokinetics is the study of what the body does to the drug,
including the processes of absorption, distribution, metabolism, and
excretion (ADME). Pharmacodynamics is what the drug does to the body.
2. Which term describes what the DRUG does to the body?
(A) Pharmacokinetics
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(B) Pharmacodynamics
(C) Pharmacotherapeutics
(D) Pharmacognosy
Answer: (B) Pharmacodynamics
Rationale: Pharmacodynamics is the study of what the drug does to the
body—the biochemical and physiological effects of drugs and their
mechanisms of action.
3. The "first-pass effect" refers to:
(A) The drug being metabolized by the liver before reaching systemic
circulation
(B) The drug binding to plasma proteins
(C) The drug being excreted by the kidneys
(D) The drug crossing the blood-brain barrier
Answer: (A) The drug being metabolized by the liver before reaching
systemic circulation
Rationale: The first-pass effect refers to the metabolism of an oral drug by the
liver before it reaches systemic circulation, reducing bioavailability.
4. Bioavailability is defined as:
(A) The time it takes for a drug to reach its maximum therapeutic response
(B) The amount of the drug that is actually available after being metabolized
(C) The time it takes for a drug to elicit a therapeutic response
(D) The time a drug concentration is sufficient to elicit a response
Answer: (B) The amount of the drug that is actually available after being
metabolized
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Rationale: Bioavailability is the extent of drug absorption for a given drug and
route—the amount of active drug that reaches systemic circulation.
5. What is the term for the time it takes for a drug to reach its maximum
therapeutic response?
(A) Onset
(B) Duration
(C) Peak
(D) Half-life
Answer: (C) Peak
Rationale: Peak is the time it takes for a drug to reach its maximum
therapeutic response. Onset is the time to first response; duration is how long
the response lasts.
6. The time it takes for one-half of the original amount of a drug to leave
the body is called:
(A) Onset
(B) Peak
(C) Half-life
(D) Duration
Answer: (C) Half-life
Rationale: Half-life is the time required for the serum concentration of a drug
to decrease by 50%. It helps determine dosing intervals.
7. A drug that binds to a receptor and produces a response is called a(n):
(A) Antagonist
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(B) Agonist
(C) Enzyme
(D) Inhibitor
Answer: (B) Agonist
Rationale: An agonist is a drug that binds to a receptor and produces a
response. An antagonist binds but produces no response.
8. Which route of administration has the FASTEST onset of action?
(A) Oral
(B) Subcutaneous
(C) Intramuscular
(D) Intravenous
Answer: (D) Intravenous
Rationale: Intravenous administration delivers the drug directly into the
bloodstream, providing the fastest onset of action. Oral, subcutaneous, and
intramuscular routes require absorption before the drug reaches systemic
circulation.
9. A narrow therapeutic index means:
(A) The drug is very safe and does not require monitoring
(B) There is a small difference between the effective and toxic dose
(C) The drug has a very long half-life
(D) The drug is excreted rapidly
Answer: (B) There is a small difference between the effective and toxic
dose
