NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
NRG 200 PHARMACOLOGY FOR HUMAN CARING
NURSING
MIDTERM EXAMINATION (2026/2027 EDITION)
Real Exam Questions with 100% Verified Correct Answers
Total Questions 120 multiple-choice items (A-D) with one best answer each
Sections 10 content sections aligned to the NRG 200 midterm examination blueprint
Answer Key Verified correct answer and rationale provided after every question
NRG 200 Curriculum | NCLEX-RN Pharmacology Standards | Patient-Centered Caring
Standards
Competencies
Section 1: Pharmacokinetics & Pharmacodynamics
Q1. A nursing student is reviewing the four basic pharmacokinetic processes with a clinical instructor.
Which process describes the movement of a drug from its site of administration into the bloodstream?
A. Absorption *[CORRECT]*
B. Distribution
C. Metabolism
D. Excretion
Correct Answer: A
Rationale: Absorption is the movement of a drug from its site of administration into the blood or plasma, a
core concept in the NRG 200 pharmacokinetics module. Distribution refers to transport of the drug to tissues,
metabolism (biotransformation) is chemical inactivation performed primarily by the liver, and excretion is
elimination from the body, so options B, C, and D describe different phases of the process.
Q2. A patient with chronic stable angina asks the nurse why nitroglycerin is placed under the tongue
instead of being swallowed. Which explanation by the nurse is most accurate?
A. Sublingual absorption produces a more pleasant taste and higher patient satisfaction.
B. The sublingual route bypasses hepatic first-pass metabolism, allowing rapid absorption
directly into the systemic circulation. *[CORRECT]*
C. Sublingual administration prevents the drug from entering the bloodstream too quickly.
D. Swallowed nitroglycerin is completely destroyed by stomach acid before absorption.
Correct Answer: B
Rationale: Swallowed nitroglycerin undergoes extensive first-pass metabolism by hepatic enzymes, leaving
little active drug in the circulation. The sublingual route delivers the drug directly into the systemic circulation,
a key principle taught in the NRG 200 routes-of-administration unit. Option D is incorrect because hepatic
enzymes, not gastric acid, inactivate oral nitroglycerin, and options A and C misstate the purpose of the route.
NRG 200 - Pharmacology for Human Caring Nursing 1
,NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
Q3. A patient stabilized on warfarin, which is approximately 99 percent protein bound, is newly
prescribed a second medication that is also highly protein bound. The nurse recognizes that the primary
pharmacokinetic risk of this combination is which of the following?
A. Decreased free warfarin levels, reducing the anticoagulant effect
B. Accelerated hepatic metabolism of both drugs
C. Displacement of warfarin from plasma proteins, increasing free drug levels and the risk of
bleeding *[CORRECT]*
D. Increased renal excretion of warfarin, requiring a higher dose
Correct Answer: C
Rationale: When two highly protein-bound drugs are given together, the second drug displaces warfarin from
albumin binding sites, abruptly raising the concentration of free, pharmacologically active warfarin and the risk
of hemorrhage. NRG 200 links this displacement interaction to the principle that only unbound drug produces
therapeutic and toxic effects. Options A and D describe effects opposite to the actual risk, and option B
incorrectly describes the interaction as metabolic rather than distributive.
Q4. During a pharmacology review session, the instructor asks which organ performs the greatest share of
drug biotransformation. Which response by the student is correct?
A. The kidneys, which filter drug metabolites
B. The lungs, which oxygenate portal blood
C. The small intestine, which absorbs all oral drugs
D. The liver, which contains the cytochrome P450 enzyme system *[CORRECT]*
Correct Answer: D
Rationale: The liver is the primary site of drug metabolism, largely through the cytochrome P450 enzyme
superfamily, which chemically modifies most medications and underlies the first-pass effect. NRG 200
identifies hepatic CYP450 activity as the foundation for understanding metabolism and drug interactions. The
kidneys are the principal organs of excretion rather than metabolism, making option A the most common
distractor.
Q5. A patient begins receiving a medication with a half-life of 6 hours administered at fixed intervals.
Approximately how long will it take for the drug to reach steady-state plasma concentration?
A. 6 hours
B. 12 hours
C. 30 hours *[CORRECT]*
D. 60 hours
Correct Answer: C
Rationale: Steady state is reached after approximately four to five half-lives of consistent dosing; with a 6-hour
half-life, 5 × 6 = 30 hours is the best estimate. NRG 200 emphasizes this rule when teaching patients why full
therapeutic effect may take several days. One half-life (option A) changes the concentration by only half, and
options B and D under- and over-estimate the time required.
NRG 200 - Pharmacology for Human Caring Nursing 2
,NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
Q6. A patient with chronic kidney disease has a creatinine clearance of 22 mL/min and is prescribed
several renally cleared medications. What is the priority nursing action based on this finding?
A. Encourage a fluid intake of at least 3 L daily
B. Anticipate that doses may need to be reduced or dosing intervals lengthened to prevent drug
accumulation *[CORRECT]*
C. Request that all medications be switched to the intravenous route
D. Administer all doses with meals to slow absorption
Correct Answer: B
Rationale: Because the kidneys are the major route of drug excretion, a reduced creatinine clearance slows
elimination and allows drugs and metabolites to accumulate to toxic levels. NRG 200 requires nurses to
anticipate renal dose adjustment using creatinine clearance before administration. Increasing fluids (option A)
does not restore impaired clearance, and switching routes (option C) does not bypass renal elimination.
Q7. Naloxone binds to opioid receptors and blocks the action of endogenous and exogenous opioids
without producing any analgesic effect of its own. In pharmacodynamic terms, naloxone is classified as
which of the following?
A. An antagonist *[CORRECT]*
B. A full agonist
C. A partial agonist
D. An agonist-antagonist
Correct Answer: A
Rationale: An antagonist occupies receptors and prevents their activation by agonists such as morphine,
producing no intrinsic activity itself. NRG 200 uses naloxone as the prototype receptor antagonist for reversing
opioid-induced respiratory depression. Because naloxone produces no analgesia, it cannot be an agonist, and it
blocks rather than partially activates receptors, excluding options B, C, and D.
Q8. A patient is newly prescribed phenytoin. The nurse plans care recognizing that frequent serum drug
level monitoring is required primarily because of which property of this drug?
A. Phenytoin has a very large volume of distribution
B. Phenytoin is excreted unchanged by the kidneys
C. Phenytoin follows simple linear elimination at all doses
D. Phenytoin has a narrow therapeutic index *[CORRECT]*
Correct Answer: D
Rationale: A narrow therapeutic index means the toxic concentration lies close to the therapeutic range (10 to
20 mcg/mL for phenytoin), so small changes in dose or kinetics can produce toxicity or therapeutic failure.
NRG 200 groups phenytoin with digoxin, lithium, and warfarin as narrow-therapeutic-index drugs requiring
serum monitoring. Options A, B, and C are inaccurate statements about phenytoin kinetics, and dose-dependent
saturation kinetics at higher levels further support close monitoring.
NRG 200 - Pharmacology for Human Caring Nursing 3
, NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
Q9. Drug A lowers blood pressure at a dose of 2 mg, while Drug B must be given at 8 mg to produce the
same degree of blood pressure reduction. Both drugs achieve an identical maximal response. Which
conclusion is accurate?
A. Drug B is more potent and more efficacious than Drug A
B. Drug A has greater efficacy than Drug B
C. Drug A is more potent than Drug B, but efficacy is equal *[CORRECT]*
D. Drug A and Drug B are equally potent
Correct Answer: C
Rationale: Potency reflects the amount of drug needed to produce a given effect, so Drug A, which works at
the smaller dose, is the more potent of the pair. Efficacy is the maximal achievable response, and because both
drugs reach the same maximum, their efficacy is equal. NRG 200 highlights this distinction because potency
influences dosing, whereas efficacy determines the clinical ceiling of a drug.
Q10. A patient is brought to the emergency department with a respiratory rate of 6 breaths/min and
pinpoint pupils after ingesting an unknown quantity of oxycodone. The nurse prepares to administer
naloxone, understanding that its therapeutic action results from which mechanism?
A. Accelerating hepatic metabolism of the ingested opioid
B. Competitively blocking opioid receptors, reversing respiratory depression *[CORRECT]*
C. Binding opioid molecules in the plasma and promoting renal excretion
D. Directly stimulating the medullary respiratory center
Correct Answer: B
Rationale: Naloxone competitively displaces opioid agonists from mu receptors, rapidly restoring respiratory
drive without removing the drug from the body. NRG 200 presents this as the classic example of competitive
pharmacodynamic antagonism used in emergency care. Metabolic acceleration (option A) and plasma binding
with excretion (option C) describe other interaction mechanisms, and naloxone does not directly stimulate the
respiratory center (option D).
Q11. A patient is prescribed doxycycline for a skin infection and tells the nurse, 'I usually take my pills
with a glass of milk and an antacid for heartburn.' What is the nurse's best response?
A. 'Dairy products and antacids bind doxycycline in the GI tract and reduce absorption; take it
with a full glass of water, separated from antacids and dairy by several hours.' *[CORRECT]*
B. 'Milk actually improves doxycycline absorption, so continue your current routine.'
C. 'Take doxycycline with an antacid to protect your stomach lining from irritation.'
D. 'Stop the antacid completely for the entire course of treatment.'
Correct Answer: A
Rationale: Divalent cations in dairy products, antacids, iron, and calcium form insoluble chelates with
tetracyclines, sharply reducing absorption and risking therapeutic failure. NRG 200 teaches nurses to schedule
interacting substances apart, and taking the capsule with a full glass of water also prevents esophageal irritation.
Option B is factually wrong, option C would worsen absorption, and option D is unnecessarily restrictive
because the substances only need to be separated in time.
NRG 200 - Pharmacology for Human Caring Nursing 4
NRG 200 PHARMACOLOGY FOR HUMAN CARING
NURSING
MIDTERM EXAMINATION (2026/2027 EDITION)
Real Exam Questions with 100% Verified Correct Answers
Total Questions 120 multiple-choice items (A-D) with one best answer each
Sections 10 content sections aligned to the NRG 200 midterm examination blueprint
Answer Key Verified correct answer and rationale provided after every question
NRG 200 Curriculum | NCLEX-RN Pharmacology Standards | Patient-Centered Caring
Standards
Competencies
Section 1: Pharmacokinetics & Pharmacodynamics
Q1. A nursing student is reviewing the four basic pharmacokinetic processes with a clinical instructor.
Which process describes the movement of a drug from its site of administration into the bloodstream?
A. Absorption *[CORRECT]*
B. Distribution
C. Metabolism
D. Excretion
Correct Answer: A
Rationale: Absorption is the movement of a drug from its site of administration into the blood or plasma, a
core concept in the NRG 200 pharmacokinetics module. Distribution refers to transport of the drug to tissues,
metabolism (biotransformation) is chemical inactivation performed primarily by the liver, and excretion is
elimination from the body, so options B, C, and D describe different phases of the process.
Q2. A patient with chronic stable angina asks the nurse why nitroglycerin is placed under the tongue
instead of being swallowed. Which explanation by the nurse is most accurate?
A. Sublingual absorption produces a more pleasant taste and higher patient satisfaction.
B. The sublingual route bypasses hepatic first-pass metabolism, allowing rapid absorption
directly into the systemic circulation. *[CORRECT]*
C. Sublingual administration prevents the drug from entering the bloodstream too quickly.
D. Swallowed nitroglycerin is completely destroyed by stomach acid before absorption.
Correct Answer: B
Rationale: Swallowed nitroglycerin undergoes extensive first-pass metabolism by hepatic enzymes, leaving
little active drug in the circulation. The sublingual route delivers the drug directly into the systemic circulation,
a key principle taught in the NRG 200 routes-of-administration unit. Option D is incorrect because hepatic
enzymes, not gastric acid, inactivate oral nitroglycerin, and options A and C misstate the purpose of the route.
NRG 200 - Pharmacology for Human Caring Nursing 1
,NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
Q3. A patient stabilized on warfarin, which is approximately 99 percent protein bound, is newly
prescribed a second medication that is also highly protein bound. The nurse recognizes that the primary
pharmacokinetic risk of this combination is which of the following?
A. Decreased free warfarin levels, reducing the anticoagulant effect
B. Accelerated hepatic metabolism of both drugs
C. Displacement of warfarin from plasma proteins, increasing free drug levels and the risk of
bleeding *[CORRECT]*
D. Increased renal excretion of warfarin, requiring a higher dose
Correct Answer: C
Rationale: When two highly protein-bound drugs are given together, the second drug displaces warfarin from
albumin binding sites, abruptly raising the concentration of free, pharmacologically active warfarin and the risk
of hemorrhage. NRG 200 links this displacement interaction to the principle that only unbound drug produces
therapeutic and toxic effects. Options A and D describe effects opposite to the actual risk, and option B
incorrectly describes the interaction as metabolic rather than distributive.
Q4. During a pharmacology review session, the instructor asks which organ performs the greatest share of
drug biotransformation. Which response by the student is correct?
A. The kidneys, which filter drug metabolites
B. The lungs, which oxygenate portal blood
C. The small intestine, which absorbs all oral drugs
D. The liver, which contains the cytochrome P450 enzyme system *[CORRECT]*
Correct Answer: D
Rationale: The liver is the primary site of drug metabolism, largely through the cytochrome P450 enzyme
superfamily, which chemically modifies most medications and underlies the first-pass effect. NRG 200
identifies hepatic CYP450 activity as the foundation for understanding metabolism and drug interactions. The
kidneys are the principal organs of excretion rather than metabolism, making option A the most common
distractor.
Q5. A patient begins receiving a medication with a half-life of 6 hours administered at fixed intervals.
Approximately how long will it take for the drug to reach steady-state plasma concentration?
A. 6 hours
B. 12 hours
C. 30 hours *[CORRECT]*
D. 60 hours
Correct Answer: C
Rationale: Steady state is reached after approximately four to five half-lives of consistent dosing; with a 6-hour
half-life, 5 × 6 = 30 hours is the best estimate. NRG 200 emphasizes this rule when teaching patients why full
therapeutic effect may take several days. One half-life (option A) changes the concentration by only half, and
options B and D under- and over-estimate the time required.
NRG 200 - Pharmacology for Human Caring Nursing 2
,NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
Q6. A patient with chronic kidney disease has a creatinine clearance of 22 mL/min and is prescribed
several renally cleared medications. What is the priority nursing action based on this finding?
A. Encourage a fluid intake of at least 3 L daily
B. Anticipate that doses may need to be reduced or dosing intervals lengthened to prevent drug
accumulation *[CORRECT]*
C. Request that all medications be switched to the intravenous route
D. Administer all doses with meals to slow absorption
Correct Answer: B
Rationale: Because the kidneys are the major route of drug excretion, a reduced creatinine clearance slows
elimination and allows drugs and metabolites to accumulate to toxic levels. NRG 200 requires nurses to
anticipate renal dose adjustment using creatinine clearance before administration. Increasing fluids (option A)
does not restore impaired clearance, and switching routes (option C) does not bypass renal elimination.
Q7. Naloxone binds to opioid receptors and blocks the action of endogenous and exogenous opioids
without producing any analgesic effect of its own. In pharmacodynamic terms, naloxone is classified as
which of the following?
A. An antagonist *[CORRECT]*
B. A full agonist
C. A partial agonist
D. An agonist-antagonist
Correct Answer: A
Rationale: An antagonist occupies receptors and prevents their activation by agonists such as morphine,
producing no intrinsic activity itself. NRG 200 uses naloxone as the prototype receptor antagonist for reversing
opioid-induced respiratory depression. Because naloxone produces no analgesia, it cannot be an agonist, and it
blocks rather than partially activates receptors, excluding options B, C, and D.
Q8. A patient is newly prescribed phenytoin. The nurse plans care recognizing that frequent serum drug
level monitoring is required primarily because of which property of this drug?
A. Phenytoin has a very large volume of distribution
B. Phenytoin is excreted unchanged by the kidneys
C. Phenytoin follows simple linear elimination at all doses
D. Phenytoin has a narrow therapeutic index *[CORRECT]*
Correct Answer: D
Rationale: A narrow therapeutic index means the toxic concentration lies close to the therapeutic range (10 to
20 mcg/mL for phenytoin), so small changes in dose or kinetics can produce toxicity or therapeutic failure.
NRG 200 groups phenytoin with digoxin, lithium, and warfarin as narrow-therapeutic-index drugs requiring
serum monitoring. Options A, B, and C are inaccurate statements about phenytoin kinetics, and dose-dependent
saturation kinetics at higher levels further support close monitoring.
NRG 200 - Pharmacology for Human Caring Nursing 3
, NRG 200 PHARMACOLOGY FOR HUMAN CARING NURSING - MIDTERM EXAM (2026/2027 EDITION) Total Questions: 120
Q9. Drug A lowers blood pressure at a dose of 2 mg, while Drug B must be given at 8 mg to produce the
same degree of blood pressure reduction. Both drugs achieve an identical maximal response. Which
conclusion is accurate?
A. Drug B is more potent and more efficacious than Drug A
B. Drug A has greater efficacy than Drug B
C. Drug A is more potent than Drug B, but efficacy is equal *[CORRECT]*
D. Drug A and Drug B are equally potent
Correct Answer: C
Rationale: Potency reflects the amount of drug needed to produce a given effect, so Drug A, which works at
the smaller dose, is the more potent of the pair. Efficacy is the maximal achievable response, and because both
drugs reach the same maximum, their efficacy is equal. NRG 200 highlights this distinction because potency
influences dosing, whereas efficacy determines the clinical ceiling of a drug.
Q10. A patient is brought to the emergency department with a respiratory rate of 6 breaths/min and
pinpoint pupils after ingesting an unknown quantity of oxycodone. The nurse prepares to administer
naloxone, understanding that its therapeutic action results from which mechanism?
A. Accelerating hepatic metabolism of the ingested opioid
B. Competitively blocking opioid receptors, reversing respiratory depression *[CORRECT]*
C. Binding opioid molecules in the plasma and promoting renal excretion
D. Directly stimulating the medullary respiratory center
Correct Answer: B
Rationale: Naloxone competitively displaces opioid agonists from mu receptors, rapidly restoring respiratory
drive without removing the drug from the body. NRG 200 presents this as the classic example of competitive
pharmacodynamic antagonism used in emergency care. Metabolic acceleration (option A) and plasma binding
with excretion (option C) describe other interaction mechanisms, and naloxone does not directly stimulate the
respiratory center (option D).
Q11. A patient is prescribed doxycycline for a skin infection and tells the nurse, 'I usually take my pills
with a glass of milk and an antacid for heartburn.' What is the nurse's best response?
A. 'Dairy products and antacids bind doxycycline in the GI tract and reduce absorption; take it
with a full glass of water, separated from antacids and dairy by several hours.' *[CORRECT]*
B. 'Milk actually improves doxycycline absorption, so continue your current routine.'
C. 'Take doxycycline with an antacid to protect your stomach lining from irritation.'
D. 'Stop the antacid completely for the entire course of treatment.'
Correct Answer: A
Rationale: Divalent cations in dairy products, antacids, iron, and calcium form insoluble chelates with
tetracyclines, sharply reducing absorption and risking therapeutic failure. NRG 200 teaches nurses to schedule
interacting substances apart, and taking the capsule with a full glass of water also prevents esophageal irritation.
Option B is factually wrong, option C would worsen absorption, and option D is unnecessarily restrictive
because the substances only need to be separated in time.
NRG 200 - Pharmacology for Human Caring Nursing 4
