BSN 215 Comprehensive Final Exam Review
NCLEX-Style Practice Questions & Answers
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Section I: Basic Pharmacology Principles (Questions 1-15)
1. The nurse is teaching a patient about a new medication. The patient asks,
"What does it mean when the drug has a half-life of 8 hours?" Which
response by the nurse is most accurate?
A) "The drug will be completely eliminated from your body in 8 hours."
B) "It takes 8 hours for half of the drug to be eliminated from your body."
C) "The drug reaches its peak effectiveness in 8 hours."
D) "You need to take the drug every 8 hours for it to work."
Answer: B
Rationale: Half-life is the time required for the serum concentration of a
drug to decrease by 50%. It takes approximately 4-5 half-lives for a drug to
be completely eliminated from the body. Option B is the only accurate
description .
2. A patient with liver disease is prescribed a medication that undergoes
extensive first-pass metabolism. The nurse anticipates that this patient may
require:
A) A higher dose of the medication
B) A lower dose of the medication
AE
,C) The same dose as a patient with normal liver function
D) The medication to be given rectally
Answer: A
Rationale: Patients with liver disease have reduced first-pass metabolism,
meaning more of the drug reaches systemic circulation. However, the
question is asking about patients who may require HIGHER doses because
their liver cannot metabolize the drug effectively. Actually, in liver disease,
the dose should often be REDUCED. Wait—re-reading: With liver disease,
first-pass metabolism is decreased, so bioavailability is increased, and
LOWER doses are needed. However, some drugs require higher doses
because the liver can't activate them. For most drugs, LOWER doses are
needed. The correct answer would be lower dose. Let me correct.
CORRECTED Answer: B
Rationale: Patients with liver disease have reduced first-pass metabolism,
meaning more active drug reaches systemic circulation. A lower dose is
typically required to prevent toxicity. Option B is correct.
3. The nurse is caring for a patient receiving a drug with a narrow
therapeutic index. Which nursing action is most important?
A) Administer the drug with food to enhance absorption
B) Monitor serum drug levels as ordered
C) Assess for allergic reactions
D) Provide patient education about side effects
Answer: B
Rationale: Drugs with a narrow therapeutic index have a small margin
between therapeutic and toxic doses. Serum drug levels must be monitored
closely to ensure the dose is therapeutic without reaching toxic levels. This
is the priority nursing action .
AE
,4. A patient asks the nurse why they are experiencing different effects from
a medication than their friend who takes the same drug. The nurse explains
that the most common cause of variations in drug response is:
A) Differences in diet
B) Differences in drug metabolism
C) Differences in route of administration
D) Differences in the time of day the drug is taken
Answer: B
Rationale: Genetic variations in drug-metabolizing enzymes (especially the
CYP450 system) are the most common cause of interpatient variability in
drug response. These variations affect how quickly or slowly a patient
metabolizes medications.
5. The nurse is teaching a patient about the differences between generic
and brand-name drugs. Which statement by the patient indicates
understanding?
A) "Generic drugs are not as effective as brand-name drugs."
B) "Generic drugs have different active ingredients than brand-name drugs."
C) "Generic drugs must have the same active ingredient, strength, and dosage
form as the brand-name drug."
D) "Generic drugs are always more expensive than brand-name drugs."
Answer: C
Rationale: Generic drugs must have the same active ingredient, strength,
dosage form, and route of administration as the brand-name drug.
Bioequivalence standards ensure similar absorption and effectiveness. They
contain the same active ingredients but may have different inactive
ingredients.
6. Which statement best describes the difference between
pharmacodynamics and pharmacokinetics?
AE
, A) Pharmacodynamics is what the body does to the drug, and pharmacokinetics
is what the drug does to the body.
B) Pharmacodynamics is what the drug does to the body, and pharmacokinetics
is what the body does to the drug.
C) Pharmacodynamics studies drug absorption, and pharmacokinetics studies
drug distribution.
D) Pharmacodynamics studies drug metabolism, and pharmacokinetics studies
drug excretion.
Answer: B
Rationale: Pharmacodynamics is the study of what the drug does to the
body (drug-receptor interactions, therapeutic and toxic effects).
Pharmacokinetics is the study of what the body does to the drug
(absorption, distribution, metabolism, excretion).
7. The nurse is administering a medication that is highly protein-bound.
Which patient condition would the nurse identify as increasing the risk of
toxicity?
A) Obesity
B) Malnutrition with low serum albumin
C) Hypertension
D) Diabetes mellitus
Answer: B
Rationale: Patients with low serum albumin (such as those with
malnutrition, liver disease, or nephrotic syndrome) have fewer protein-
binding sites. This increases the amount of free (unbound) drug, which is
pharmacologically active and can lead to toxicity.
8. A patient is receiving intravenous (IV) antibiotics. The nurse knows that
IV administration results in which pharmacokinetic advantage?
AE
NCLEX-Style Practice Questions & Answers
(PDF) | Nightingale | Questions with
Verified Answers | 100% Correct
A+ Verified 2026/27 Update
Section I: Basic Pharmacology Principles (Questions 1-15)
1. The nurse is teaching a patient about a new medication. The patient asks,
"What does it mean when the drug has a half-life of 8 hours?" Which
response by the nurse is most accurate?
A) "The drug will be completely eliminated from your body in 8 hours."
B) "It takes 8 hours for half of the drug to be eliminated from your body."
C) "The drug reaches its peak effectiveness in 8 hours."
D) "You need to take the drug every 8 hours for it to work."
Answer: B
Rationale: Half-life is the time required for the serum concentration of a
drug to decrease by 50%. It takes approximately 4-5 half-lives for a drug to
be completely eliminated from the body. Option B is the only accurate
description .
2. A patient with liver disease is prescribed a medication that undergoes
extensive first-pass metabolism. The nurse anticipates that this patient may
require:
A) A higher dose of the medication
B) A lower dose of the medication
AE
,C) The same dose as a patient with normal liver function
D) The medication to be given rectally
Answer: A
Rationale: Patients with liver disease have reduced first-pass metabolism,
meaning more of the drug reaches systemic circulation. However, the
question is asking about patients who may require HIGHER doses because
their liver cannot metabolize the drug effectively. Actually, in liver disease,
the dose should often be REDUCED. Wait—re-reading: With liver disease,
first-pass metabolism is decreased, so bioavailability is increased, and
LOWER doses are needed. However, some drugs require higher doses
because the liver can't activate them. For most drugs, LOWER doses are
needed. The correct answer would be lower dose. Let me correct.
CORRECTED Answer: B
Rationale: Patients with liver disease have reduced first-pass metabolism,
meaning more active drug reaches systemic circulation. A lower dose is
typically required to prevent toxicity. Option B is correct.
3. The nurse is caring for a patient receiving a drug with a narrow
therapeutic index. Which nursing action is most important?
A) Administer the drug with food to enhance absorption
B) Monitor serum drug levels as ordered
C) Assess for allergic reactions
D) Provide patient education about side effects
Answer: B
Rationale: Drugs with a narrow therapeutic index have a small margin
between therapeutic and toxic doses. Serum drug levels must be monitored
closely to ensure the dose is therapeutic without reaching toxic levels. This
is the priority nursing action .
AE
,4. A patient asks the nurse why they are experiencing different effects from
a medication than their friend who takes the same drug. The nurse explains
that the most common cause of variations in drug response is:
A) Differences in diet
B) Differences in drug metabolism
C) Differences in route of administration
D) Differences in the time of day the drug is taken
Answer: B
Rationale: Genetic variations in drug-metabolizing enzymes (especially the
CYP450 system) are the most common cause of interpatient variability in
drug response. These variations affect how quickly or slowly a patient
metabolizes medications.
5. The nurse is teaching a patient about the differences between generic
and brand-name drugs. Which statement by the patient indicates
understanding?
A) "Generic drugs are not as effective as brand-name drugs."
B) "Generic drugs have different active ingredients than brand-name drugs."
C) "Generic drugs must have the same active ingredient, strength, and dosage
form as the brand-name drug."
D) "Generic drugs are always more expensive than brand-name drugs."
Answer: C
Rationale: Generic drugs must have the same active ingredient, strength,
dosage form, and route of administration as the brand-name drug.
Bioequivalence standards ensure similar absorption and effectiveness. They
contain the same active ingredients but may have different inactive
ingredients.
6. Which statement best describes the difference between
pharmacodynamics and pharmacokinetics?
AE
, A) Pharmacodynamics is what the body does to the drug, and pharmacokinetics
is what the drug does to the body.
B) Pharmacodynamics is what the drug does to the body, and pharmacokinetics
is what the body does to the drug.
C) Pharmacodynamics studies drug absorption, and pharmacokinetics studies
drug distribution.
D) Pharmacodynamics studies drug metabolism, and pharmacokinetics studies
drug excretion.
Answer: B
Rationale: Pharmacodynamics is the study of what the drug does to the
body (drug-receptor interactions, therapeutic and toxic effects).
Pharmacokinetics is the study of what the body does to the drug
(absorption, distribution, metabolism, excretion).
7. The nurse is administering a medication that is highly protein-bound.
Which patient condition would the nurse identify as increasing the risk of
toxicity?
A) Obesity
B) Malnutrition with low serum albumin
C) Hypertension
D) Diabetes mellitus
Answer: B
Rationale: Patients with low serum albumin (such as those with
malnutrition, liver disease, or nephrotic syndrome) have fewer protein-
binding sites. This increases the amount of free (unbound) drug, which is
pharmacologically active and can lead to toxicity.
8. A patient is receiving intravenous (IV) antibiotics. The nurse knows that
IV administration results in which pharmacokinetic advantage?
AE
