KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is participating in a clinical trial for a new medication.
Which statement best describes the primary purpose of a Phase
III clinical trial?
A. To identify the drug's mechanism of action in laboratory
animals
B. To evaluate safety and effectiveness in a large population
before regulatory review
C. To determine the chemical structure of the medication
D. To monitor long-term adverse effects after the drug has been
marketed
Correct Answer: B
Rationale:
Phase III clinical trials involve large groups of participants to
confirm therapeutic effectiveness, identify common adverse
effects, compare the medication with existing treatments, and
gather sufficient evidence for regulatory approval. Option A
describes preclinical research. Option C occurs during drug
discovery. Option D describes post-marketing (Phase IV)
surveillance.
Question 2
,A nurse explains to a client that a medication has high
therapeutic selectivity. Which interpretation by the client
indicates correct understanding?
A. "The drug mainly affects the intended target while
minimizing effects on other tissues."
B. "The medication is guaranteed to cause no adverse effects."
C. "The medication will work the same in every patient."
D. "The drug can be safely taken in unlimited doses."
Correct Answer: A
Rationale:
Selective drugs preferentially act on specific receptors or
tissues, improving therapeutic benefit while reducing unwanted
effects. No medication is completely free of adverse effects,
making Option B incorrect. Individual responses vary due to
genetics, age, disease, and other factors, eliminating Option C.
Therapeutic selectivity does not eliminate toxicity from
excessive dosing, making Option D incorrect.
Question 3
A nurse reviews information about drug approval before
educating a client. Which organization is primarily responsible
for evaluating evidence of safety and effectiveness before
approving medications for marketing in the United States?
, A. The Joint Commission
B. State Board of Nursing
C. The Food and Drug Administration (FDA)
D. Centers for Disease Control and Prevention (CDC)
Correct Answer: C
Rationale:
The FDA evaluates scientific evidence regarding safety, efficacy,
manufacturing quality, and labeling before approving
medications for marketing in the United States. The Joint
Commission accredits healthcare organizations. State Boards of
Nursing regulate nursing practice. The CDC focuses on disease
prevention and public health rather than drug approval.
Question 4
A nurse caring for a hospitalized client notices that the client is
receiving a medication for an indication not listed in the official
prescribing information. What is the nurse's best initial action?
A. Refuse to administer the medication immediately.
B. Verify the clinical rationale and prescribed indication with the
healthcare provider if clarification is needed.
C. Report the provider for prescribing an unapproved
medication.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is participating in a clinical trial for a new medication.
Which statement best describes the primary purpose of a Phase
III clinical trial?
A. To identify the drug's mechanism of action in laboratory
animals
B. To evaluate safety and effectiveness in a large population
before regulatory review
C. To determine the chemical structure of the medication
D. To monitor long-term adverse effects after the drug has been
marketed
Correct Answer: B
Rationale:
Phase III clinical trials involve large groups of participants to
confirm therapeutic effectiveness, identify common adverse
effects, compare the medication with existing treatments, and
gather sufficient evidence for regulatory approval. Option A
describes preclinical research. Option C occurs during drug
discovery. Option D describes post-marketing (Phase IV)
surveillance.
Question 2
,A nurse explains to a client that a medication has high
therapeutic selectivity. Which interpretation by the client
indicates correct understanding?
A. "The drug mainly affects the intended target while
minimizing effects on other tissues."
B. "The medication is guaranteed to cause no adverse effects."
C. "The medication will work the same in every patient."
D. "The drug can be safely taken in unlimited doses."
Correct Answer: A
Rationale:
Selective drugs preferentially act on specific receptors or
tissues, improving therapeutic benefit while reducing unwanted
effects. No medication is completely free of adverse effects,
making Option B incorrect. Individual responses vary due to
genetics, age, disease, and other factors, eliminating Option C.
Therapeutic selectivity does not eliminate toxicity from
excessive dosing, making Option D incorrect.
Question 3
A nurse reviews information about drug approval before
educating a client. Which organization is primarily responsible
for evaluating evidence of safety and effectiveness before
approving medications for marketing in the United States?
, A. The Joint Commission
B. State Board of Nursing
C. The Food and Drug Administration (FDA)
D. Centers for Disease Control and Prevention (CDC)
Correct Answer: C
Rationale:
The FDA evaluates scientific evidence regarding safety, efficacy,
manufacturing quality, and labeling before approving
medications for marketing in the United States. The Joint
Commission accredits healthcare organizations. State Boards of
Nursing regulate nursing practice. The CDC focuses on disease
prevention and public health rather than drug approval.
Question 4
A nurse caring for a hospitalized client notices that the client is
receiving a medication for an indication not listed in the official
prescribing information. What is the nurse's best initial action?
A. Refuse to administer the medication immediately.
B. Verify the clinical rationale and prescribed indication with the
healthcare provider if clarification is needed.
C. Report the provider for prescribing an unapproved
medication.
