,NU 578 Pharmacology for Advanced Practice
Nurses Unit 1 Exam Study Guide University of
South Alabama Exam Prep & 100 Q&A MCQs
1. Which statement best defines pharmacokinetics?
A. The study of how drugs produce their therapeutic effects at receptor sites
B. The study of drug absorption, distribution, metabolism, and excretion
C. The study of adverse drug reactions and toxicity profiles
D. The study of drug-receptor binding and signal transduction pathways
Correct Answer: B
Rationale: Pharmacokinetics (PK) describes what the body does to the drug, encompassing the
four major processes: Absorption, Distribution, Metabolism, and Excretion (ADME).
Pharmacodynamics, in contrast, describes what the drug does to the body. This distinction is
foundational to the course and is explicitly emphasized in the NU 578 Unit 1 learning objectives.
2. Which statement best defines pharmacodynamics?
A. The impact of the body on drugs — how much of an administered dose reaches its sites of
action
B. The study of drug absorption, distribution, metabolism, and excretion
C. The impact of drugs on the body — the nature and intensity of the response
D. The study of how drugs are eliminated from the body over time
,Correct Answer: C
Rationale: Pharmacodynamics (PD) describes the biochemical and physiological effects of drugs
on the body, including mechanisms of action, receptor binding, and dose-response
relationships. It answers the question "What does the drug do to the body?".
3. A drug produces its desired therapeutic effect without affecting other body systems. Which
property of an ideal drug does this best describe?
A. Safety
B. Effectiveness
C. Selectivity
D. Reversibility
Correct Answer: C
Rationale: Selectivity refers to a drug's ability to produce its desired effect by targeting specific
receptors or tissues without affecting unintended systems. An ideal drug acts only on the target
site. A drug may be effective and safe but not selective if it causes unwanted side effects.
4. A prescriber selects a medication that has been on the market for 20 years with a well-
documented safety profile. Which property of an ideal drug is being emphasized?
, A. The drug causes minimal adverse reactions at therapeutic doses
B. The drug produces the desired therapeutic response in the patient
C. The drug can be administered using a simple once-daily regimen
D. The drug does not interact with other medications the patient takes
Correct Answer: A
Rationale: Safety refers to the drug's low potential for harm. A long-established safety profile
indicates the drug rarely causes serious harm at therapeutic doses. Effectiveness is the ability to
produce the intended therapeutic response; ease of administration relates to adherence, not
safety.
5. A drug effectively reduces blood pressure without serious harmful effects but causes nausea
and headache. Which property of an ideal drug is lacking?
A. Effectiveness
B. Safety
C. Selectivity
D. Potency
Correct Answer: C
Rationale: While the drug is effective and safe, it is not selective because it causes unwanted
side effects (nausea, headache). Selectivity means the drug acts only on the target site. The side
effects indicate the drug is affecting non-target tissues or systems.
Nurses Unit 1 Exam Study Guide University of
South Alabama Exam Prep & 100 Q&A MCQs
1. Which statement best defines pharmacokinetics?
A. The study of how drugs produce their therapeutic effects at receptor sites
B. The study of drug absorption, distribution, metabolism, and excretion
C. The study of adverse drug reactions and toxicity profiles
D. The study of drug-receptor binding and signal transduction pathways
Correct Answer: B
Rationale: Pharmacokinetics (PK) describes what the body does to the drug, encompassing the
four major processes: Absorption, Distribution, Metabolism, and Excretion (ADME).
Pharmacodynamics, in contrast, describes what the drug does to the body. This distinction is
foundational to the course and is explicitly emphasized in the NU 578 Unit 1 learning objectives.
2. Which statement best defines pharmacodynamics?
A. The impact of the body on drugs — how much of an administered dose reaches its sites of
action
B. The study of drug absorption, distribution, metabolism, and excretion
C. The impact of drugs on the body — the nature and intensity of the response
D. The study of how drugs are eliminated from the body over time
,Correct Answer: C
Rationale: Pharmacodynamics (PD) describes the biochemical and physiological effects of drugs
on the body, including mechanisms of action, receptor binding, and dose-response
relationships. It answers the question "What does the drug do to the body?".
3. A drug produces its desired therapeutic effect without affecting other body systems. Which
property of an ideal drug does this best describe?
A. Safety
B. Effectiveness
C. Selectivity
D. Reversibility
Correct Answer: C
Rationale: Selectivity refers to a drug's ability to produce its desired effect by targeting specific
receptors or tissues without affecting unintended systems. An ideal drug acts only on the target
site. A drug may be effective and safe but not selective if it causes unwanted side effects.
4. A prescriber selects a medication that has been on the market for 20 years with a well-
documented safety profile. Which property of an ideal drug is being emphasized?
, A. The drug causes minimal adverse reactions at therapeutic doses
B. The drug produces the desired therapeutic response in the patient
C. The drug can be administered using a simple once-daily regimen
D. The drug does not interact with other medications the patient takes
Correct Answer: A
Rationale: Safety refers to the drug's low potential for harm. A long-established safety profile
indicates the drug rarely causes serious harm at therapeutic doses. Effectiveness is the ability to
produce the intended therapeutic response; ease of administration relates to adherence, not
safety.
5. A drug effectively reduces blood pressure without serious harmful effects but causes nausea
and headache. Which property of an ideal drug is lacking?
A. Effectiveness
B. Safety
C. Selectivity
D. Potency
Correct Answer: C
Rationale: While the drug is effective and safe, it is not selective because it causes unwanted
side effects (nausea, headache). Selectivity means the drug acts only on the target site. The side
effects indicate the drug is affecting non-target tissues or systems.
