,NSG 318 Exam 1 Introduction to Pharmacology Questions And
Answers 2026/2027 Grand canyon university
Q1. Which statement best defines pharmacology?
A. The study of surgical procedures
B. The study of drugs and their effects on living systems
C. The study of microorganisms only
D. The study of nutrition
Correct Answer: B
Rationale: Pharmacology is the study of medications and how chemical
substances affect living organisms.
Q2. Which term describes a condition that makes a particular
medication or treatment inadvisable?
A. Indication
B. Contraindication
C. Potency
D. Tolerance
Correct Answer: B
Rationale: A contraindication is a circumstance in which a medication or
treatment should not be used because the potential harm outweighs the
benefit.
**Q3. Which term describes the amount of a drug required to produce a
desired effect?
A. Potency
B. Efficacy
C. Half-life
D. Tolerance
Correct Answer: A
Rationale: Potency refers to the amount of drug needed to produce a
particular effect. It does not describe the maximum effect the drug can
produce.
**Q4. Which term describes the maximum effect a drug can produce?
A. Potency
B. Efficacy
, C. Half-life
D. Absorption
Correct Answer: B
Rationale: Efficacy is the maximum therapeutic effect a drug can produce.
**Q5. Which term refers to the time required for the amount of a drug in the
body to decrease by 50%?
A. Plateau
B. Half-life
C. Peak
D. Onset
Correct Answer: B
Rationale: A drug's half-life is the time required for its concentration or
amount in the body to decrease by half.
**Q6. Which term describes the point at which the amount of drug
administered over time is approximately balanced by the amount
eliminated?
A. Plateau or steady state
B. Loading dose
C. Peak
D. Onset
Correct Answer: A
Rationale: A steady state or plateau occurs when drug intake and
elimination reach a relatively stable relationship.
**Q7. Which drug action occurs when a medication binds to a receptor and
activates it?
A. Antagonism
B. Agonism
C. Inhibition only
D. Tolerance
Correct Answer: B
Rationale: An agonist binds to a receptor and activates a response.
Answers 2026/2027 Grand canyon university
Q1. Which statement best defines pharmacology?
A. The study of surgical procedures
B. The study of drugs and their effects on living systems
C. The study of microorganisms only
D. The study of nutrition
Correct Answer: B
Rationale: Pharmacology is the study of medications and how chemical
substances affect living organisms.
Q2. Which term describes a condition that makes a particular
medication or treatment inadvisable?
A. Indication
B. Contraindication
C. Potency
D. Tolerance
Correct Answer: B
Rationale: A contraindication is a circumstance in which a medication or
treatment should not be used because the potential harm outweighs the
benefit.
**Q3. Which term describes the amount of a drug required to produce a
desired effect?
A. Potency
B. Efficacy
C. Half-life
D. Tolerance
Correct Answer: A
Rationale: Potency refers to the amount of drug needed to produce a
particular effect. It does not describe the maximum effect the drug can
produce.
**Q4. Which term describes the maximum effect a drug can produce?
A. Potency
B. Efficacy
, C. Half-life
D. Absorption
Correct Answer: B
Rationale: Efficacy is the maximum therapeutic effect a drug can produce.
**Q5. Which term refers to the time required for the amount of a drug in the
body to decrease by 50%?
A. Plateau
B. Half-life
C. Peak
D. Onset
Correct Answer: B
Rationale: A drug's half-life is the time required for its concentration or
amount in the body to decrease by half.
**Q6. Which term describes the point at which the amount of drug
administered over time is approximately balanced by the amount
eliminated?
A. Plateau or steady state
B. Loading dose
C. Peak
D. Onset
Correct Answer: A
Rationale: A steady state or plateau occurs when drug intake and
elimination reach a relatively stable relationship.
**Q7. Which drug action occurs when a medication binds to a receptor and
activates it?
A. Antagonism
B. Agonism
C. Inhibition only
D. Tolerance
Correct Answer: B
Rationale: An agonist binds to a receptor and activates a response.
