NUR 2474 PATHO/PHARM ATI THE NURSE'S ROLE IN PHARMACOLOGY
MODULE QUIZ AND CORRECT ANSWERS (VERIFIED ANSWERS) | NEW
UPDATE 2026/27 | GRADED A+
## SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS
### Question 1
A nurse is preparing to administer a drug to a client. In which section of a drug
handbook should the nurse look to determine if the drug has more than one use?
A. Adverse effects
B. Indications
C. Pharmacokinetics
D. Nursing implications
**Answer: B. Indications**
**Rationale:** The **indications** section of a drug handbook lists the conditions
or diseases for which the drug is approved to treat. If a drug has more than one use,
it will be listed under indications. Adverse effects describe unwanted effects,
pharmacokinetics describes drug movement through the body, and nursing
implications describe nursing considerations for administration.
---
### Question 2
A nurse is caring for a client who was prescribed an antidepressant based on its
ability to prevent the reuptake of neurotransmitters. The nurse should identify which
term describes why this drug was prescribed for the client?
A. Pharmacologic action
B. Chemical stability
C. Route
,D. Adverse effects
**Answer: A. Pharmacologic action**
**Rationale:** **Pharmacologic action** describes how a drug produces its
effects in the body—in this case, preventing the reuptake of neurotransmitters. This
is the mechanism of action that makes the drug effective for treating depression.
Chemical stability, route, and adverse effects do not describe the reason the drug
was prescribed.
---
### Question 3
A nurse is teaching a client who has a prescription for a drug that has a receptor
agonist effect. Which information should the nurse include in the teaching?
A. "This will increase the effects of normal cellular functions."
B. "This prevents cells in your body from performing certain actions."
C. "This prevents hormones in your body from attaching to cell receptor sites."
D. "This minimizes the risk that the medications you take will become toxic."
**Answer: A. "This will increase the effects of normal cellular functions."**
**Rationale:** An **agonist** drug binds to a receptor and activates it, producing
a response that mimics or enhances the effects of endogenous substances. This
increases normal cellular functions. In contrast, an **antagonist** blocks receptors.
The other options describe antagonist effects or general safety information.
---
### Question 4
Which phase of drug development focuses on post-marketing surveillance?
, A. Phase I
B. Phase II
C. Phase III
D. Phase IV
**Answer: D. Phase IV**
**Rationale:** **Phase IV** trials occur after a drug has been approved and
marketed. These studies monitor for rare or long-term adverse effects that may not
have been detected in earlier trials. Phase I focuses on safety, Phase II on
effectiveness, and Phase III on comparison with existing treatments.
---
### Question 5
A drug's half-life is 8 hours. How much of the drug will remain in the patient's
system after 24 hours?
A. 50%
B. 25%
C. 12.5%
D. 6.25%
**Answer: C. 12.5%**
**Rationale:** **Half-life** is the time required for 50% of the drug to be
eliminated from the body. After 8 hours (1 half-life): 50% remains. After 16 hours (2
half-lives): 25% remains. After 24 hours (3 half-lives): 12.5% remains. This
calculation is essential for determining dosing intervals and predicting drug
accumulation.
MODULE QUIZ AND CORRECT ANSWERS (VERIFIED ANSWERS) | NEW
UPDATE 2026/27 | GRADED A+
## SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS
### Question 1
A nurse is preparing to administer a drug to a client. In which section of a drug
handbook should the nurse look to determine if the drug has more than one use?
A. Adverse effects
B. Indications
C. Pharmacokinetics
D. Nursing implications
**Answer: B. Indications**
**Rationale:** The **indications** section of a drug handbook lists the conditions
or diseases for which the drug is approved to treat. If a drug has more than one use,
it will be listed under indications. Adverse effects describe unwanted effects,
pharmacokinetics describes drug movement through the body, and nursing
implications describe nursing considerations for administration.
---
### Question 2
A nurse is caring for a client who was prescribed an antidepressant based on its
ability to prevent the reuptake of neurotransmitters. The nurse should identify which
term describes why this drug was prescribed for the client?
A. Pharmacologic action
B. Chemical stability
C. Route
,D. Adverse effects
**Answer: A. Pharmacologic action**
**Rationale:** **Pharmacologic action** describes how a drug produces its
effects in the body—in this case, preventing the reuptake of neurotransmitters. This
is the mechanism of action that makes the drug effective for treating depression.
Chemical stability, route, and adverse effects do not describe the reason the drug
was prescribed.
---
### Question 3
A nurse is teaching a client who has a prescription for a drug that has a receptor
agonist effect. Which information should the nurse include in the teaching?
A. "This will increase the effects of normal cellular functions."
B. "This prevents cells in your body from performing certain actions."
C. "This prevents hormones in your body from attaching to cell receptor sites."
D. "This minimizes the risk that the medications you take will become toxic."
**Answer: A. "This will increase the effects of normal cellular functions."**
**Rationale:** An **agonist** drug binds to a receptor and activates it, producing
a response that mimics or enhances the effects of endogenous substances. This
increases normal cellular functions. In contrast, an **antagonist** blocks receptors.
The other options describe antagonist effects or general safety information.
---
### Question 4
Which phase of drug development focuses on post-marketing surveillance?
, A. Phase I
B. Phase II
C. Phase III
D. Phase IV
**Answer: D. Phase IV**
**Rationale:** **Phase IV** trials occur after a drug has been approved and
marketed. These studies monitor for rare or long-term adverse effects that may not
have been detected in earlier trials. Phase I focuses on safety, Phase II on
effectiveness, and Phase III on comparison with existing treatments.
---
### Question 5
A drug's half-life is 8 hours. How much of the drug will remain in the patient's
system after 24 hours?
A. 50%
B. 25%
C. 12.5%
D. 6.25%
**Answer: C. 12.5%**
**Rationale:** **Half-life** is the time required for 50% of the drug to be
eliminated from the body. After 8 hours (1 half-life): 50% remains. After 16 hours (2
half-lives): 25% remains. After 24 hours (3 half-lives): 12.5% remains. This
calculation is essential for determining dosing intervals and predicting drug
accumulation.
