NURS 753 Final Exam Study Pack –
Therapeutic Modalities 2026 | Questions,
Answers & Detailed Rationales | Advanced
Nursing Exam Prep
• This 200-question study pack covers the full breadth of NURS 753 Therapeutic
Modalities, designed to simulate final exam conditions with clinically grounded
questions, clear answer choices, and detailed EXPERT RATIONALE to reinforce
understanding.
• Each question follows a structured format — bolded stem, five labeled options (A–
E), a bolded correct answer, and a EXPERT RATIONALE directly beneath — making
it easy to self-test, review mistakes, and build confidence before exam day.
NURS 753 FINAL EXAM STUDY PACK – THERAPEUTIC MODALITIES 2026
1. A nurse is preparing to administer a medication via the intravenous route.
Which of the following best describes the advantage of this route over oral
administration?
A. It allows for slower onset of drug action
B. It reduces the risk of systemic side effects
C. It bypasses first-pass metabolism in the liver
D. It is the safest route for all medications
E. It eliminates the need for dosage calculation
CORRECT ANSWER: C. It bypasses first-pass metabolism in the liver
EXPERT RATIONALE: The IV route delivers the drug directly into the bloodstream,
completely bypassing hepatic first-pass metabolism. This results in 100%
bioavailability and a faster, more predictable onset of action compared to oral
administration.
,2. A patient is prescribed a drug with a narrow therapeutic index. Which
nursing action is most critical?
A. Administer the drug only when the patient requests it
B. Monitor serum drug levels and assess for toxicity regularly
C. Double the dose if the patient misses a scheduled dose
D. Switch to an oral route to reduce concentration variability
E. Administer the drug with food to increase absorption
CORRECT ANSWER: B. Monitor serum drug levels and assess for toxicity
regularly
EXPERT RATIONALE: Drugs with a narrow therapeutic index have a small range
between the therapeutic dose and the toxic dose. Regular monitoring of serum
levels ensures the drug remains effective without causing adverse or toxic effects.
3. Which phase of pharmacokinetics refers to the movement of a drug from
its site of administration into the bloodstream?
A. Distribution
B. Metabolism
C. Excretion
D. Absorption
E. Biotransformation
CORRECT ANSWER: D. Absorption
EXPERT RATIONALE: Absorption is the process by which a drug moves from its
administration site into systemic circulation. Factors affecting absorption include
route, drug formulation, blood flow, and surface area.
,4. A nurse administers an opioid analgesic to a post-operative patient. Thirty
minutes later, the patient's respiratory rate drops to 8 breaths per minute.
What is the priority nursing action?
A. Reposition the patient and apply oxygen via nasal cannula
B. Document findings and continue monitoring
C. Administer naloxone as per protocol
D. Notify the surgeon immediately
E. Decrease the IV fluid rate
CORRECT ANSWER: C. Administer naloxone as per protocol
EXPERT RATIONALE: Respiratory depression is a serious adverse effect of opioid
analgesics. Naloxone is a competitive opioid antagonist that rapidly reverses
opioid-induced respiratory depression and is the priority intervention.
5. Which of the following best describes the concept of drug half-life?
A. The time required for a drug to reach peak plasma concentration
B. The duration of therapeutic effect after a single dose
C. The time it takes for the plasma concentration of a drug to decrease by 50%
D. The total amount of drug eliminated from the body in 24 hours
E. The time needed for a drug to be fully absorbed
CORRECT ANSWER: C. The time it takes for the plasma concentration of a
drug to decrease by 50%
EXPERT RATIONALE: Half-life (t½) is a pharmacokinetic parameter that defines how
long it takes for the concentration of a drug in plasma to be reduced by half. It
guides dosing interval decisions and predicts time to steady-state concentration.
, 6. A patient with chronic kidney disease is prescribed a renally cleared
antibiotic. Which adjustment is most appropriate?
A. Increase the dose to compensate for poor absorption
B. Administer the drug via intramuscular route only
C. Reduce the dose or extend the dosing interval
D. Discontinue the antibiotic and use a topical alternative
E. Double the infusion rate to achieve therapeutic levels
CORRECT ANSWER: C. Reduce the dose or extend the dosing interval
EXPERT RATIONALE: The kidneys are the primary route of elimination for many
drugs. In renal impairment, drug clearance is reduced, leading to accumulation and
potential toxicity. Dose reduction or interval extension maintains therapeutic levels
safely.
7. Which of the following is a characteristic of a loading dose?
A. It is always lower than the maintenance dose
B. It is given to rapidly achieve therapeutic plasma levels
C. It is administered only in pediatric patients
D. It eliminates the need for subsequent doses
E. It is used exclusively for oral medications
CORRECT ANSWER: B. It is given to rapidly achieve therapeutic plasma
levels
EXPERT RATIONALE: A loading dose is a larger-than-usual initial dose intended to
quickly achieve therapeutic concentrations in the plasma, particularly for drugs with
long half-lives where reaching steady state would otherwise take too long.
Therapeutic Modalities 2026 | Questions,
Answers & Detailed Rationales | Advanced
Nursing Exam Prep
• This 200-question study pack covers the full breadth of NURS 753 Therapeutic
Modalities, designed to simulate final exam conditions with clinically grounded
questions, clear answer choices, and detailed EXPERT RATIONALE to reinforce
understanding.
• Each question follows a structured format — bolded stem, five labeled options (A–
E), a bolded correct answer, and a EXPERT RATIONALE directly beneath — making
it easy to self-test, review mistakes, and build confidence before exam day.
NURS 753 FINAL EXAM STUDY PACK – THERAPEUTIC MODALITIES 2026
1. A nurse is preparing to administer a medication via the intravenous route.
Which of the following best describes the advantage of this route over oral
administration?
A. It allows for slower onset of drug action
B. It reduces the risk of systemic side effects
C. It bypasses first-pass metabolism in the liver
D. It is the safest route for all medications
E. It eliminates the need for dosage calculation
CORRECT ANSWER: C. It bypasses first-pass metabolism in the liver
EXPERT RATIONALE: The IV route delivers the drug directly into the bloodstream,
completely bypassing hepatic first-pass metabolism. This results in 100%
bioavailability and a faster, more predictable onset of action compared to oral
administration.
,2. A patient is prescribed a drug with a narrow therapeutic index. Which
nursing action is most critical?
A. Administer the drug only when the patient requests it
B. Monitor serum drug levels and assess for toxicity regularly
C. Double the dose if the patient misses a scheduled dose
D. Switch to an oral route to reduce concentration variability
E. Administer the drug with food to increase absorption
CORRECT ANSWER: B. Monitor serum drug levels and assess for toxicity
regularly
EXPERT RATIONALE: Drugs with a narrow therapeutic index have a small range
between the therapeutic dose and the toxic dose. Regular monitoring of serum
levels ensures the drug remains effective without causing adverse or toxic effects.
3. Which phase of pharmacokinetics refers to the movement of a drug from
its site of administration into the bloodstream?
A. Distribution
B. Metabolism
C. Excretion
D. Absorption
E. Biotransformation
CORRECT ANSWER: D. Absorption
EXPERT RATIONALE: Absorption is the process by which a drug moves from its
administration site into systemic circulation. Factors affecting absorption include
route, drug formulation, blood flow, and surface area.
,4. A nurse administers an opioid analgesic to a post-operative patient. Thirty
minutes later, the patient's respiratory rate drops to 8 breaths per minute.
What is the priority nursing action?
A. Reposition the patient and apply oxygen via nasal cannula
B. Document findings and continue monitoring
C. Administer naloxone as per protocol
D. Notify the surgeon immediately
E. Decrease the IV fluid rate
CORRECT ANSWER: C. Administer naloxone as per protocol
EXPERT RATIONALE: Respiratory depression is a serious adverse effect of opioid
analgesics. Naloxone is a competitive opioid antagonist that rapidly reverses
opioid-induced respiratory depression and is the priority intervention.
5. Which of the following best describes the concept of drug half-life?
A. The time required for a drug to reach peak plasma concentration
B. The duration of therapeutic effect after a single dose
C. The time it takes for the plasma concentration of a drug to decrease by 50%
D. The total amount of drug eliminated from the body in 24 hours
E. The time needed for a drug to be fully absorbed
CORRECT ANSWER: C. The time it takes for the plasma concentration of a
drug to decrease by 50%
EXPERT RATIONALE: Half-life (t½) is a pharmacokinetic parameter that defines how
long it takes for the concentration of a drug in plasma to be reduced by half. It
guides dosing interval decisions and predicts time to steady-state concentration.
, 6. A patient with chronic kidney disease is prescribed a renally cleared
antibiotic. Which adjustment is most appropriate?
A. Increase the dose to compensate for poor absorption
B. Administer the drug via intramuscular route only
C. Reduce the dose or extend the dosing interval
D. Discontinue the antibiotic and use a topical alternative
E. Double the infusion rate to achieve therapeutic levels
CORRECT ANSWER: C. Reduce the dose or extend the dosing interval
EXPERT RATIONALE: The kidneys are the primary route of elimination for many
drugs. In renal impairment, drug clearance is reduced, leading to accumulation and
potential toxicity. Dose reduction or interval extension maintains therapeutic levels
safely.
7. Which of the following is a characteristic of a loading dose?
A. It is always lower than the maintenance dose
B. It is given to rapidly achieve therapeutic plasma levels
C. It is administered only in pediatric patients
D. It eliminates the need for subsequent doses
E. It is used exclusively for oral medications
CORRECT ANSWER: B. It is given to rapidly achieve therapeutic plasma
levels
EXPERT RATIONALE: A loading dose is a larger-than-usual initial dose intended to
quickly achieve therapeutic concentrations in the plasma, particularly for drugs with
long half-lives where reaching steady state would otherwise take too long.
