HESI Pharmacology 2026: 200 Advanced Q&A
with Rationales for Exam Success
Comprehensive HESI Pharmacology Advanced
Review: 100 Practice Questions & Rationales
Section 1: Principles of Medication
Administration & Safety
1. Before administering a laxative to a
bedridden client, what is the most
important assessment for the nurse to
perform?
A. Observe the skin integrity of the client's
rectal and sacral areas.
B. Assess the client's strength in moving and
turning in the bed.
C. Evaluate the client's ability to recognize
the urge to defecate.
D. Determine the frequency and
, consistency of bowel movements.
Correct ☑VERIFIED ANSWER: D
Rationale: Before giving a laxative, the
nurse must first ensure the client is not
already experiencing diarrhea or frequent
loose stools, as administering a laxative
could worsen fluid and electrolyte
imbalances. While skin integrity and
mobility are important assessments, they
are lower priority than confirming the need
for the medication.
2. A client receiving an IV infusion of
vancomycin reports flushing, a headache,
and a rash on the neck and chest. What is
the nurse's priority action?
A. Stop the infusion immediately and notify
the provider.
B. Slow the infusion rate and monitor the
, client's vital signs.
C. Administer diphenhydramine (Benadryl)
as a PRN medication.
D. Document the findings as a mild allergic
reaction.
Correct ☑VERIFIED ANSWER: B
Rationale: This presentation describes "Red
Man Syndrome," a histamine-release
reaction commonly associated with rapid
vancomycin infusion. The priority
intervention is to slow the infusion rate to
minimize symptoms. Stopping the infusion
may be necessary if symptoms are severe,
but slowing the rate is the first-line
intervention.
3. Which finding should the nurse report
to the healthcare provider before the
administration of a neuromuscular
, blocking agent?
A. Hypokalemia
B. Hyponatremia
C. Hypercalcemia
D. Hypomagnesemia
Correct ☑VERIFIED ANSWER: A
Rationale: Hypokalemia increases the risk
of prolonged neuromuscular blockade and
adverse effects when neuromuscular
blocking agents are administered.
Electrolyte imbalances, especially low
potassium, affect nerve and muscle
excitability. Reporting hypokalemia allows
for correction before the procedure to
prevent complications.
4. What is the primary purpose of
administering atropine sulfate to a child
before surgery?
with Rationales for Exam Success
Comprehensive HESI Pharmacology Advanced
Review: 100 Practice Questions & Rationales
Section 1: Principles of Medication
Administration & Safety
1. Before administering a laxative to a
bedridden client, what is the most
important assessment for the nurse to
perform?
A. Observe the skin integrity of the client's
rectal and sacral areas.
B. Assess the client's strength in moving and
turning in the bed.
C. Evaluate the client's ability to recognize
the urge to defecate.
D. Determine the frequency and
, consistency of bowel movements.
Correct ☑VERIFIED ANSWER: D
Rationale: Before giving a laxative, the
nurse must first ensure the client is not
already experiencing diarrhea or frequent
loose stools, as administering a laxative
could worsen fluid and electrolyte
imbalances. While skin integrity and
mobility are important assessments, they
are lower priority than confirming the need
for the medication.
2. A client receiving an IV infusion of
vancomycin reports flushing, a headache,
and a rash on the neck and chest. What is
the nurse's priority action?
A. Stop the infusion immediately and notify
the provider.
B. Slow the infusion rate and monitor the
, client's vital signs.
C. Administer diphenhydramine (Benadryl)
as a PRN medication.
D. Document the findings as a mild allergic
reaction.
Correct ☑VERIFIED ANSWER: B
Rationale: This presentation describes "Red
Man Syndrome," a histamine-release
reaction commonly associated with rapid
vancomycin infusion. The priority
intervention is to slow the infusion rate to
minimize symptoms. Stopping the infusion
may be necessary if symptoms are severe,
but slowing the rate is the first-line
intervention.
3. Which finding should the nurse report
to the healthcare provider before the
administration of a neuromuscular
, blocking agent?
A. Hypokalemia
B. Hyponatremia
C. Hypercalcemia
D. Hypomagnesemia
Correct ☑VERIFIED ANSWER: A
Rationale: Hypokalemia increases the risk
of prolonged neuromuscular blockade and
adverse effects when neuromuscular
blocking agents are administered.
Electrolyte imbalances, especially low
potassium, affect nerve and muscle
excitability. Reporting hypokalemia allows
for correction before the procedure to
prevent complications.
4. What is the primary purpose of
administering atropine sulfate to a child
before surgery?
