Pharmacology for Nursing Comprehensive Practice Exam 1:
Basic Pharmacology, Medication Administration, Dosage
Calculations, Drug Classifications, Pharmacokinetics,
Pharmacodynamics, Medication Safety, Legal & Ethical
Principles Questions with Answers and Rationales
Question 1
A nurse is preparing to administer an oral medication to a patient. Which action should the nurse
perform first?
A. Verify the provider's prescription with the medication administration record (MAR)
B. Document that the medication was given
C. Ask the patient to swallow the medication immediately
D. Return the medication to the storage cabinet
Answer: A. Verify the provider's prescription with the medication
administration record (MAR)
Rationale:
The nurse should first verify the medication order against the MAR to ensure the correct
medication, dose, route, and time before administering any drug.
Question 2
A nurse understands that pharmacology is best defined as:
A. The study of medications and their effects on living organisms
B. The study of microorganisms that cause disease
C. The study of surgical procedures
D. The study of laboratory testing
Answer: A. The study of medications and their effects on living organisms
Rationale:
,Pharmacology is the science that studies drugs, including their sources, properties, therapeutic
uses, actions, and adverse effects.
Question 3
Which branch of pharmacology studies how the body absorbs, distributes, metabolizes, and
eliminates medications?
A. Pharmacokinetics
B. Pharmacodynamics
C. Toxicology
D. Pharmacogenomics
Answer: A. Pharmacokinetics
Rationale:
Pharmacokinetics describes what the body does to a drug through the processes of absorption,
distribution, metabolism, and excretion (ADME).
Question 4
Which branch of pharmacology focuses on the effects medications have on the body?
A. Pharmacodynamics
B. Pharmacokinetics
C. Microbiology
D. Pathophysiology
Answer: A. Pharmacodynamics
Rationale:
Pharmacodynamics explains how medications produce therapeutic and adverse effects by
interacting with body tissues and receptors.
Question 5
,A nurse identifies which route as providing the fastest medication absorption during an
emergency?
A. Intravenous (IV)
B. Oral (PO)
C. Topical
D. Rectal
Answer: A. Intravenous (IV)
Rationale:
Intravenous medications enter the bloodstream directly, producing an immediate therapeutic
effect.
Question 6
A nurse is preparing medications for four patients. Which action helps reduce medication errors?
A. Compare the medication label with the MAR before administration
B. Prepare medications for multiple patients at the same time
C. Leave medications unattended at the nurses' station
D. Skip patient identification if the patient is familiar
Answer: A. Compare the medication label with the MAR before administration
Rationale:
Comparing medication labels with the MAR during preparation helps prevent medication errors
and ensures safe administration.
Question 7
Which factor most commonly affects the absorption of orally administered medications?
A. Presence of food in the stomach
B. Hair color
C. Hand dominance
D. Eye color
Answer: A. Presence of food in the stomach
, Rationale:
Food may delay, reduce, or increase medication absorption depending on the specific drug.
Question 8
A nurse recognizes that metabolism of most medications occurs primarily in which organ?
A. Liver
B. Heart
C. Lungs
D. Spleen
Answer: A. Liver
Rationale:
The liver contains enzymes that metabolize many medications before they are eliminated from
the body.
Question 9
Which organ is primarily responsible for eliminating most medications from the body?
A. Kidneys
B. Pancreas
C. Gallbladder
D. Thyroid gland
Answer: A. Kidneys
Rationale:
The kidneys excrete many medications and their metabolites through urine.
Question 10
Before administering any medication, the nurse should first verify the patient's identity using:
Basic Pharmacology, Medication Administration, Dosage
Calculations, Drug Classifications, Pharmacokinetics,
Pharmacodynamics, Medication Safety, Legal & Ethical
Principles Questions with Answers and Rationales
Question 1
A nurse is preparing to administer an oral medication to a patient. Which action should the nurse
perform first?
A. Verify the provider's prescription with the medication administration record (MAR)
B. Document that the medication was given
C. Ask the patient to swallow the medication immediately
D. Return the medication to the storage cabinet
Answer: A. Verify the provider's prescription with the medication
administration record (MAR)
Rationale:
The nurse should first verify the medication order against the MAR to ensure the correct
medication, dose, route, and time before administering any drug.
Question 2
A nurse understands that pharmacology is best defined as:
A. The study of medications and their effects on living organisms
B. The study of microorganisms that cause disease
C. The study of surgical procedures
D. The study of laboratory testing
Answer: A. The study of medications and their effects on living organisms
Rationale:
,Pharmacology is the science that studies drugs, including their sources, properties, therapeutic
uses, actions, and adverse effects.
Question 3
Which branch of pharmacology studies how the body absorbs, distributes, metabolizes, and
eliminates medications?
A. Pharmacokinetics
B. Pharmacodynamics
C. Toxicology
D. Pharmacogenomics
Answer: A. Pharmacokinetics
Rationale:
Pharmacokinetics describes what the body does to a drug through the processes of absorption,
distribution, metabolism, and excretion (ADME).
Question 4
Which branch of pharmacology focuses on the effects medications have on the body?
A. Pharmacodynamics
B. Pharmacokinetics
C. Microbiology
D. Pathophysiology
Answer: A. Pharmacodynamics
Rationale:
Pharmacodynamics explains how medications produce therapeutic and adverse effects by
interacting with body tissues and receptors.
Question 5
,A nurse identifies which route as providing the fastest medication absorption during an
emergency?
A. Intravenous (IV)
B. Oral (PO)
C. Topical
D. Rectal
Answer: A. Intravenous (IV)
Rationale:
Intravenous medications enter the bloodstream directly, producing an immediate therapeutic
effect.
Question 6
A nurse is preparing medications for four patients. Which action helps reduce medication errors?
A. Compare the medication label with the MAR before administration
B. Prepare medications for multiple patients at the same time
C. Leave medications unattended at the nurses' station
D. Skip patient identification if the patient is familiar
Answer: A. Compare the medication label with the MAR before administration
Rationale:
Comparing medication labels with the MAR during preparation helps prevent medication errors
and ensures safe administration.
Question 7
Which factor most commonly affects the absorption of orally administered medications?
A. Presence of food in the stomach
B. Hair color
C. Hand dominance
D. Eye color
Answer: A. Presence of food in the stomach
, Rationale:
Food may delay, reduce, or increase medication absorption depending on the specific drug.
Question 8
A nurse recognizes that metabolism of most medications occurs primarily in which organ?
A. Liver
B. Heart
C. Lungs
D. Spleen
Answer: A. Liver
Rationale:
The liver contains enzymes that metabolize many medications before they are eliminated from
the body.
Question 9
Which organ is primarily responsible for eliminating most medications from the body?
A. Kidneys
B. Pancreas
C. Gallbladder
D. Thyroid gland
Answer: A. Kidneys
Rationale:
The kidneys excrete many medications and their metabolites through urine.
Question 10
Before administering any medication, the nurse should first verify the patient's identity using:
