NU 578 Advanced Pharmacology Units 1-5 – Practice
Questions & Rationales
Based on available search results, I have compiled a comprehensive set of practice
questions covering advanced pharmacology concepts for the NU 578 Units 1-5 exams.
These questions are derived from unofficial student-shared resources .
SECTION 1: PHARMACOLOGICAL PRINCIPLES &
REGULATORY FRAMEWORK (Questions 1-15)
Question 1
Which property of an ideal drug refers to its ability to elicit only the response for which
it is given?
A) Effectiveness
B) Safety
C) Selectivity
D) Reversible action
Correct Resolution Result Verified Answers : C
Rationale: Selectivity is the ability of a drug to produce only the intended therapeutic
response. Most drugs are non-selective to some degree, causing additional unwanted
effects. For example, a drug that lowers blood pressure but also causes nausea and
headache is effective and safe but lacks selectivity .
,Question 2
If a drug is not effective for its intended purpose, what is the most compelling clinical
justification regarding its use?
A) The drug may still be given if it has a short half-life
B) The drug should not be given because there is no justification for administering an
ineffective drug
C) The drug can be administered if combined with another agent
D) The drug should be given at a higher dose to improve effectiveness
Correct Resolution Result Verified Answers : B
Rationale: Effectiveness is the most important property of a drug. If a drug is not effective,
there is no justification for administering it, regardless of how safe or convenient it is .
Question 3
Which legislation was the first to mandate drug SAFETY (but not effectiveness) in the
United States?
A) Pure Food and Drug Act (1906)
B) Harrison Narcotic Act (1914)
C) Food, Drug, and Cosmetic Act (1938)
D) Kefauver-Harris Amendments (1962)
Correct Resolution Result Verified Answers : C
Rationale: The Food, Drug, and Cosmetic Act of 1938 mandated drug SAFETY for the first
time and enforced registration of all parties involved in manufacture, sale, and distribution
of drugs. The Kefauver-Harris Amendments (1962) later added the requirement for proof
of EFFICACY .
, Question 4
The Durham-Humphrey Amendments (1952) established which distinction?
A) Separation of prescription vs. over-the-counter drugs
B) Child-resistant packaging requirements
C) Drug scheduling system (Schedules I-V)
D) Fast-tracking of drugs for serious illnesses
Correct Resolution Result Verified Answers : A
Rationale: The Durham-Humphrey Amendments established the distinction between
prescription and OTC medications by separating who prescribes versus who dispenses .
Question 5
Which DEA schedule has no accepted medical use in the U.S. and has the highest abuse
potential?
A) Schedule I
B) Schedule II
C) Schedule III
D) Schedule IV
Correct Resolution Result Verified Answers : A
Rationale: Schedule I drugs have no currently accepted medical use in the U.S., a high
abuse potential, and severe psychological or physical dependence potential. Examples
include heroin, LSD, and marijuana .
Questions & Rationales
Based on available search results, I have compiled a comprehensive set of practice
questions covering advanced pharmacology concepts for the NU 578 Units 1-5 exams.
These questions are derived from unofficial student-shared resources .
SECTION 1: PHARMACOLOGICAL PRINCIPLES &
REGULATORY FRAMEWORK (Questions 1-15)
Question 1
Which property of an ideal drug refers to its ability to elicit only the response for which
it is given?
A) Effectiveness
B) Safety
C) Selectivity
D) Reversible action
Correct Resolution Result Verified Answers : C
Rationale: Selectivity is the ability of a drug to produce only the intended therapeutic
response. Most drugs are non-selective to some degree, causing additional unwanted
effects. For example, a drug that lowers blood pressure but also causes nausea and
headache is effective and safe but lacks selectivity .
,Question 2
If a drug is not effective for its intended purpose, what is the most compelling clinical
justification regarding its use?
A) The drug may still be given if it has a short half-life
B) The drug should not be given because there is no justification for administering an
ineffective drug
C) The drug can be administered if combined with another agent
D) The drug should be given at a higher dose to improve effectiveness
Correct Resolution Result Verified Answers : B
Rationale: Effectiveness is the most important property of a drug. If a drug is not effective,
there is no justification for administering it, regardless of how safe or convenient it is .
Question 3
Which legislation was the first to mandate drug SAFETY (but not effectiveness) in the
United States?
A) Pure Food and Drug Act (1906)
B) Harrison Narcotic Act (1914)
C) Food, Drug, and Cosmetic Act (1938)
D) Kefauver-Harris Amendments (1962)
Correct Resolution Result Verified Answers : C
Rationale: The Food, Drug, and Cosmetic Act of 1938 mandated drug SAFETY for the first
time and enforced registration of all parties involved in manufacture, sale, and distribution
of drugs. The Kefauver-Harris Amendments (1962) later added the requirement for proof
of EFFICACY .
, Question 4
The Durham-Humphrey Amendments (1952) established which distinction?
A) Separation of prescription vs. over-the-counter drugs
B) Child-resistant packaging requirements
C) Drug scheduling system (Schedules I-V)
D) Fast-tracking of drugs for serious illnesses
Correct Resolution Result Verified Answers : A
Rationale: The Durham-Humphrey Amendments established the distinction between
prescription and OTC medications by separating who prescribes versus who dispenses .
Question 5
Which DEA schedule has no accepted medical use in the U.S. and has the highest abuse
potential?
A) Schedule I
B) Schedule II
C) Schedule III
D) Schedule IV
Correct Resolution Result Verified Answers : A
Rationale: Schedule I drugs have no currently accepted medical use in the U.S., a high
abuse potential, and severe psychological or physical dependence potential. Examples
include heroin, LSD, and marijuana .
