EVOLVE PHARMACOLOGY HESI EXAM PREP
Complete Practice Script with 150+
Questions Multiple Choice with Multiple
Answers LATEST EDITION 2026!
SECTION A: PHARMACOKINETICS & PHARMACODYNAMICS (Questions 1-20)
Question 1
A patient is prescribed a medication that undergoes extensive first-pass metabolism.
The nurse understands that this medication:
Select all that apply
A) Is administered via the intravenous route to bypass this effect
B) Is metabolized in the liver before reaching systemic circulation
C) Has reduced bioavailability when given orally
D) Requires higher oral doses to achieve therapeutic effects
E) Is unaffected by hepatic enzyme induction
CORRECT ANSWERS: B, C, D
Rationale: First-pass metabolism occurs when drugs are metabolized in the liver before
reaching systemic circulation. This significantly reduces oral bioavailability (B, C). To
achieve therapeutic effects, higher oral doses are often required (D). IV administration
bypasses first-pass metabolism (A is incorrect - IV doesn't bypass, it avoids). Hepatic
enzyme induction affects first-pass metabolism (E is incorrect).
Question 2
A nurse is teaching about drug half-life. Which statements accurately describe this
concept?
Select all that apply
,A) Half-life is the time required for the drug concentration to decrease by 50%
B) Drugs with short half-lives require more frequent dosing
C) Half-life determines the time to reach steady state
D) Renal impairment typically prolongs drug half-life
E) Half-life remains constant regardless of drug concentration
CORRECT ANSWERS: A, B, C, D, E
Rationale: All statements are correct. Half-life is the time for drug concentration to
decrease by 50% (A). Short half-life drugs need more frequent administration to
maintain therapeutic levels (B). Steady state is achieved after approximately 4-5 half-
lives (C). Renal impairment reduces drug elimination, prolonging half-life (D). Half-life is
a constant property of the drug in a given patient (E).
Question 3
A patient is receiving a drug with a narrow therapeutic index. The nurse should:
Select all that apply
A) Monitor serum drug levels regularly
B) Observe for signs of toxicity
C) Administer the drug with food to enhance absorption
D) Assess for therapeutic response
E) Adjust dosing based on peak and trough levels
CORRECT ANSWERS: A, B, D, E
Rationale: Narrow therapeutic index drugs have a small margin between therapeutic
and toxic doses. Monitoring serum levels (A), observing for toxicity (B), assessing
therapeutic response (D), and adjusting dosing based on levels (E) are essential.
,Administering with food may not be appropriate for all narrow therapeutic index drugs
and could affect absorption unpredictably (C is not universally correct).
Question 4
Which factors affect drug absorption?
Select all that apply
A) Route of administration
B) Blood flow to the absorption site
C) Gastrointestinal pH
D) Presence of food in the stomach
E) Drug formulation
CORRECT ANSWERS: A, B, C, D, E
Rationale: All listed factors affect drug absorption. Route determines bioavailability (A).
Blood flow affects rate of absorption (B). GI pH influences ionization and absorption (C).
Food can delay or enhance absorption (D). Formulation affects dissolution rate and
absorption (E).
Question 5
A nurse is explaining drug distribution to a student. Which statements are correct?
Select all that apply
A) Lipid-soluble drugs cross cell membranes more easily
B) Protein-bound drugs are pharmacologically inactive
C) Albumin is the major plasma protein for drug binding
D) Distribution is affected by tissue perfusion
E) The blood-brain barrier limits drug entry into the CNS
, CORRECT ANSWERS: A, B, C, D, E
Rationale: All statements are correct. Lipid solubility facilitates membrane crossing (A).
Only unbound (free) drug is active; protein-bound drug is inactive (B). Albumin is the
primary binding protein (C). Tissues with high perfusion receive more drug (D). The
blood-brain barrier restricts CNS entry of many drugs (E).
Question 6
A patient has liver disease. The nurse anticipates which changes in drug metabolism?
Select all that apply
A) Prolonged drug half-life
B) Increased risk of drug toxicity
C) Decreased first-pass metabolism
D) Increased drug clearance
E) Need for dosage reduction
CORRECT ANSWERS: A, B, C, E
Rationale: Liver disease impairs drug metabolism, prolonging half-life (A), increasing
toxicity risk (B), and decreasing first-pass metabolism (C). Dosage reduction is often
needed (E). Clearance is decreased, not increased (D is incorrect).
Question 7
The cytochrome P450 enzyme system:
Select all that apply
A) Is primarily located in the liver
B) Can be induced or inhibited by drugs
C) Metabolizes many medications
Complete Practice Script with 150+
Questions Multiple Choice with Multiple
Answers LATEST EDITION 2026!
SECTION A: PHARMACOKINETICS & PHARMACODYNAMICS (Questions 1-20)
Question 1
A patient is prescribed a medication that undergoes extensive first-pass metabolism.
The nurse understands that this medication:
Select all that apply
A) Is administered via the intravenous route to bypass this effect
B) Is metabolized in the liver before reaching systemic circulation
C) Has reduced bioavailability when given orally
D) Requires higher oral doses to achieve therapeutic effects
E) Is unaffected by hepatic enzyme induction
CORRECT ANSWERS: B, C, D
Rationale: First-pass metabolism occurs when drugs are metabolized in the liver before
reaching systemic circulation. This significantly reduces oral bioavailability (B, C). To
achieve therapeutic effects, higher oral doses are often required (D). IV administration
bypasses first-pass metabolism (A is incorrect - IV doesn't bypass, it avoids). Hepatic
enzyme induction affects first-pass metabolism (E is incorrect).
Question 2
A nurse is teaching about drug half-life. Which statements accurately describe this
concept?
Select all that apply
,A) Half-life is the time required for the drug concentration to decrease by 50%
B) Drugs with short half-lives require more frequent dosing
C) Half-life determines the time to reach steady state
D) Renal impairment typically prolongs drug half-life
E) Half-life remains constant regardless of drug concentration
CORRECT ANSWERS: A, B, C, D, E
Rationale: All statements are correct. Half-life is the time for drug concentration to
decrease by 50% (A). Short half-life drugs need more frequent administration to
maintain therapeutic levels (B). Steady state is achieved after approximately 4-5 half-
lives (C). Renal impairment reduces drug elimination, prolonging half-life (D). Half-life is
a constant property of the drug in a given patient (E).
Question 3
A patient is receiving a drug with a narrow therapeutic index. The nurse should:
Select all that apply
A) Monitor serum drug levels regularly
B) Observe for signs of toxicity
C) Administer the drug with food to enhance absorption
D) Assess for therapeutic response
E) Adjust dosing based on peak and trough levels
CORRECT ANSWERS: A, B, D, E
Rationale: Narrow therapeutic index drugs have a small margin between therapeutic
and toxic doses. Monitoring serum levels (A), observing for toxicity (B), assessing
therapeutic response (D), and adjusting dosing based on levels (E) are essential.
,Administering with food may not be appropriate for all narrow therapeutic index drugs
and could affect absorption unpredictably (C is not universally correct).
Question 4
Which factors affect drug absorption?
Select all that apply
A) Route of administration
B) Blood flow to the absorption site
C) Gastrointestinal pH
D) Presence of food in the stomach
E) Drug formulation
CORRECT ANSWERS: A, B, C, D, E
Rationale: All listed factors affect drug absorption. Route determines bioavailability (A).
Blood flow affects rate of absorption (B). GI pH influences ionization and absorption (C).
Food can delay or enhance absorption (D). Formulation affects dissolution rate and
absorption (E).
Question 5
A nurse is explaining drug distribution to a student. Which statements are correct?
Select all that apply
A) Lipid-soluble drugs cross cell membranes more easily
B) Protein-bound drugs are pharmacologically inactive
C) Albumin is the major plasma protein for drug binding
D) Distribution is affected by tissue perfusion
E) The blood-brain barrier limits drug entry into the CNS
, CORRECT ANSWERS: A, B, C, D, E
Rationale: All statements are correct. Lipid solubility facilitates membrane crossing (A).
Only unbound (free) drug is active; protein-bound drug is inactive (B). Albumin is the
primary binding protein (C). Tissues with high perfusion receive more drug (D). The
blood-brain barrier restricts CNS entry of many drugs (E).
Question 6
A patient has liver disease. The nurse anticipates which changes in drug metabolism?
Select all that apply
A) Prolonged drug half-life
B) Increased risk of drug toxicity
C) Decreased first-pass metabolism
D) Increased drug clearance
E) Need for dosage reduction
CORRECT ANSWERS: A, B, C, E
Rationale: Liver disease impairs drug metabolism, prolonging half-life (A), increasing
toxicity risk (B), and decreasing first-pass metabolism (C). Dosage reduction is often
needed (E). Clearance is decreased, not increased (D is incorrect).
Question 7
The cytochrome P450 enzyme system:
Select all that apply
A) Is primarily located in the liver
B) Can be induced or inhibited by drugs
C) Metabolizes many medications
