NURS 8024 PHARMACOLOGY FINAL
EXAM STUDY GUIDE | QUESTIONS AND
ANSWERS | 2026 UPDATE - UNIVERSITY
OF CINCINNATI.
SECTION 1: PHARMACOKINETICS AND
PHARMACODYNAMICS
Question 1
Pharmacokinetics is defined as:
A) The study of drug effects on the body
B) The movement of drugs within the body (what the body does to the drug)
C) The study of drug toxicity
D) The study of genetic variations in drug response
Rationale: Pharmacokinetics involves the processes of absorption, distribution,
metabolism, and elimination (ADME) of drugs—what the body does to the drug .
Pharmacodynamics is what the drug does to the body .
Question 2
Pharmacodynamics is defined as:
,A) The movement of drugs within the body
B) The study of drug effects on the body (what the drug does to the body)
C) The study of drug absorption
D) The study of drug excretion
Rationale: Pharmacodynamics describes the biochemical and physiologic effects of
drugs on the body, including receptor binding, mechanisms of action, and dose-
response relationships . Pharmacodynamics focuses on the drug's actions at receptor
sites.
Question 3
A drug that binds to a receptor and produces a maximal response is called a:
A) Partial agonist
B) Full agonist
C) Antagonist
D) Inverse agonist
Rationale: A full agonist binds to a receptor and activates it to produce a maximal
biological response . A partial agonist produces a submaximal response even at full
receptor occupancy. An antagonist binds but does not activate the receptor.
Question 4
A drug that binds to a receptor and blocks the action of an agonist is called an:
A) Agonist
B) Partial agonist
C) Antagonist
D) Inverse agonist
Rationale: An antagonist binds to a receptor, competing with other molecules and
preventing binding by agonists. It does not activate the receptor . Antagonists are
inhibitors that block receptor activation.
,Question 5
The half-life (t½) of a drug is defined as:
A) The time required for the drug to reach peak concentration
B) The time required for the drug concentration to decrease by 50%
C) The time required for the drug to be completely eliminated
D) The time required for the drug to be absorbed
Rationale: Half-life is the time required for the plasma concentration of a drug to
decrease by 50%. It determines the dosing interval and time to reach steady state .
Approximately 5 half-lives are required for a drug to be eliminated.
Question 6
A drug with a narrow therapeutic index requires:
A) Monitoring of blood pressure only
B) Serum drug level monitoring
C) Liver function testing only
D) Renal function testing only
Rationale: Drugs with a narrow therapeutic index (e.g., digoxin, lithium, warfarin,
phenytoin, aminoglycosides) require serum drug level monitoring because the margin
between the minimum effective concentration and toxic concentration is small .
Question 7
The cytochrome P450 enzyme system is primarily involved in:
A) Drug absorption
B) Drug distribution
, C) Drug metabolism
D) Drug excretion
Rationale: CYP450 enzymes, primarily located in the liver, are responsible for drug
metabolism (biotransformation). CYP3A4, CYP2D6, and CYP2C9 metabolize many drugs
and are responsible for drug-drug interactions through inhibition or induction .
Question 8
Drug excretion occurs primarily through which organ?
A) Liver
B) Kidneys
C) Lungs
D) Skin
Rationale: The kidneys are the primary route of drug excretion, eliminating drugs and
their metabolites through urine . Other routes include the lungs, bile, sweat, breast milk,
and feces .
Question 9
Which drug characteristic enhances ability to cross cell membranes?
A) Lipophilicity (hydrophobic)
B) Hydrophilicity (lipophobic)
C) High molecular weight
D) High water solubility
Rationale: Drugs must be mostly lipophilic (hydrophobic) to cross lipid-rich cell
membranes . Extremely hydrophobic drugs are poorly absorbed because they are
insoluble in aqueous body fluids. Some are transported via carrier proteins like albumin.
EXAM STUDY GUIDE | QUESTIONS AND
ANSWERS | 2026 UPDATE - UNIVERSITY
OF CINCINNATI.
SECTION 1: PHARMACOKINETICS AND
PHARMACODYNAMICS
Question 1
Pharmacokinetics is defined as:
A) The study of drug effects on the body
B) The movement of drugs within the body (what the body does to the drug)
C) The study of drug toxicity
D) The study of genetic variations in drug response
Rationale: Pharmacokinetics involves the processes of absorption, distribution,
metabolism, and elimination (ADME) of drugs—what the body does to the drug .
Pharmacodynamics is what the drug does to the body .
Question 2
Pharmacodynamics is defined as:
,A) The movement of drugs within the body
B) The study of drug effects on the body (what the drug does to the body)
C) The study of drug absorption
D) The study of drug excretion
Rationale: Pharmacodynamics describes the biochemical and physiologic effects of
drugs on the body, including receptor binding, mechanisms of action, and dose-
response relationships . Pharmacodynamics focuses on the drug's actions at receptor
sites.
Question 3
A drug that binds to a receptor and produces a maximal response is called a:
A) Partial agonist
B) Full agonist
C) Antagonist
D) Inverse agonist
Rationale: A full agonist binds to a receptor and activates it to produce a maximal
biological response . A partial agonist produces a submaximal response even at full
receptor occupancy. An antagonist binds but does not activate the receptor.
Question 4
A drug that binds to a receptor and blocks the action of an agonist is called an:
A) Agonist
B) Partial agonist
C) Antagonist
D) Inverse agonist
Rationale: An antagonist binds to a receptor, competing with other molecules and
preventing binding by agonists. It does not activate the receptor . Antagonists are
inhibitors that block receptor activation.
,Question 5
The half-life (t½) of a drug is defined as:
A) The time required for the drug to reach peak concentration
B) The time required for the drug concentration to decrease by 50%
C) The time required for the drug to be completely eliminated
D) The time required for the drug to be absorbed
Rationale: Half-life is the time required for the plasma concentration of a drug to
decrease by 50%. It determines the dosing interval and time to reach steady state .
Approximately 5 half-lives are required for a drug to be eliminated.
Question 6
A drug with a narrow therapeutic index requires:
A) Monitoring of blood pressure only
B) Serum drug level monitoring
C) Liver function testing only
D) Renal function testing only
Rationale: Drugs with a narrow therapeutic index (e.g., digoxin, lithium, warfarin,
phenytoin, aminoglycosides) require serum drug level monitoring because the margin
between the minimum effective concentration and toxic concentration is small .
Question 7
The cytochrome P450 enzyme system is primarily involved in:
A) Drug absorption
B) Drug distribution
, C) Drug metabolism
D) Drug excretion
Rationale: CYP450 enzymes, primarily located in the liver, are responsible for drug
metabolism (biotransformation). CYP3A4, CYP2D6, and CYP2C9 metabolize many drugs
and are responsible for drug-drug interactions through inhibition or induction .
Question 8
Drug excretion occurs primarily through which organ?
A) Liver
B) Kidneys
C) Lungs
D) Skin
Rationale: The kidneys are the primary route of drug excretion, eliminating drugs and
their metabolites through urine . Other routes include the lungs, bile, sweat, breast milk,
and feces .
Question 9
Which drug characteristic enhances ability to cross cell membranes?
A) Lipophilicity (hydrophobic)
B) Hydrophilicity (lipophobic)
C) High molecular weight
D) High water solubility
Rationale: Drugs must be mostly lipophilic (hydrophobic) to cross lipid-rich cell
membranes . Extremely hydrophobic drugs are poorly absorbed because they are
insoluble in aqueous body fluids. Some are transported via carrier proteins like albumin.
