2026 EDITION Basic Pharmacology for
Nurses Exam questions and verified
answers with rationale
1. Pharmacology is best defined as the study of:
A. Human anatomy only
B. Drugs and their effects on living organisms
C. Surgical procedures
D. Nutrition and metabolism
Answer: B. Drugs and their effects on living organisms
Rationale: Pharmacology is the science that examines how
drugs work, their therapeutic uses, adverse effects, and
interactions within living organisms.
2. Which branch of pharmacology describes what a drug
does to the body?
A. Pharmacokinetics
B. Pharmacodynamics
C. Toxicology
D. Pharmacy
Answer: B. Pharmacodynamics
Rationale: Pharmacodynamics focuses on the effects and
mechanisms of action of drugs on body tissues and organs.
,3. Which process refers to the movement of a drug from its
site of administration into the bloodstream?
A. Distribution
B. Metabolism
C. Absorption
D. Excretion
Answer: C. Absorption
Rationale: Absorption is the process by which a drug enters
systemic circulation after administration.
4. Which organ is primarily responsible for drug
metabolism?
A. Heart
B. Liver
C. Spleen
D. Pancreas
Answer: B. Liver
Rationale: Most drugs undergo chemical transformation in
the liver before elimination.
5. Which organ is the major route for drug excretion?
A. Lungs
B. Skin
,C. Kidneys
D. Intestines
Answer: C. Kidneys
Rationale: The kidneys eliminate many drugs and their
metabolites through urine.
6. Which route of administration generally provides the
fastest onset of action?
A. Oral
B. Intramuscular
C. Intravenous
D. Subcutaneous
Answer: C. Intravenous
Rationale: Intravenous administration delivers medication
directly into the bloodstream, producing rapid therapeutic
effects.
7. A medication prescribed to relieve pain is known as a(n):
A. Antibiotic
B. Analgesic
C. Antipyretic
D. Antihypertensive
Answer: B. Analgesic
Rationale: Analgesics are medications specifically used to
reduce or eliminate pain.
, 8. Which medication classification is used to lower body
temperature during fever?
A. Antipyretic
B. Anticoagulant
C. Diuretic
D. Antacid
Answer: A. Antipyretic
Rationale: Antipyretics help reduce elevated body
temperature associated with fever.
9. Which term refers to the desired beneficial effect of a
medication?
A. Toxic effect
B. Therapeutic effect
C. Allergic reaction
D. Adverse event
Answer: B. Therapeutic effect
Rationale: The therapeutic effect is the intended positive
clinical outcome of medication therapy.
10. An adverse drug reaction is best described as:
A. The expected therapeutic response
B. An unintended harmful response occurring at normal
doses
Nurses Exam questions and verified
answers with rationale
1. Pharmacology is best defined as the study of:
A. Human anatomy only
B. Drugs and their effects on living organisms
C. Surgical procedures
D. Nutrition and metabolism
Answer: B. Drugs and their effects on living organisms
Rationale: Pharmacology is the science that examines how
drugs work, their therapeutic uses, adverse effects, and
interactions within living organisms.
2. Which branch of pharmacology describes what a drug
does to the body?
A. Pharmacokinetics
B. Pharmacodynamics
C. Toxicology
D. Pharmacy
Answer: B. Pharmacodynamics
Rationale: Pharmacodynamics focuses on the effects and
mechanisms of action of drugs on body tissues and organs.
,3. Which process refers to the movement of a drug from its
site of administration into the bloodstream?
A. Distribution
B. Metabolism
C. Absorption
D. Excretion
Answer: C. Absorption
Rationale: Absorption is the process by which a drug enters
systemic circulation after administration.
4. Which organ is primarily responsible for drug
metabolism?
A. Heart
B. Liver
C. Spleen
D. Pancreas
Answer: B. Liver
Rationale: Most drugs undergo chemical transformation in
the liver before elimination.
5. Which organ is the major route for drug excretion?
A. Lungs
B. Skin
,C. Kidneys
D. Intestines
Answer: C. Kidneys
Rationale: The kidneys eliminate many drugs and their
metabolites through urine.
6. Which route of administration generally provides the
fastest onset of action?
A. Oral
B. Intramuscular
C. Intravenous
D. Subcutaneous
Answer: C. Intravenous
Rationale: Intravenous administration delivers medication
directly into the bloodstream, producing rapid therapeutic
effects.
7. A medication prescribed to relieve pain is known as a(n):
A. Antibiotic
B. Analgesic
C. Antipyretic
D. Antihypertensive
Answer: B. Analgesic
Rationale: Analgesics are medications specifically used to
reduce or eliminate pain.
, 8. Which medication classification is used to lower body
temperature during fever?
A. Antipyretic
B. Anticoagulant
C. Diuretic
D. Antacid
Answer: A. Antipyretic
Rationale: Antipyretics help reduce elevated body
temperature associated with fever.
9. Which term refers to the desired beneficial effect of a
medication?
A. Toxic effect
B. Therapeutic effect
C. Allergic reaction
D. Adverse event
Answer: B. Therapeutic effect
Rationale: The therapeutic effect is the intended positive
clinical outcome of medication therapy.
10. An adverse drug reaction is best described as:
A. The expected therapeutic response
B. An unintended harmful response occurring at normal
doses
