1
HESI RN Pharmacology V1-V3 PDF Bundle
Package Actual Exam 2026/2027 – Complete
Exam-Style Questions with Detailed
Rationales | Pass Guaranteed – A+ Graded
[VERSION 1: HESI Pharmacology V1 — Questions 1-75]
Q1: A nurse is preparing to administer a medication to a client. The nurse understands that the
first-pass effect of the medication occurs with which of the following routes of administration?
A. Intravenous (IV)
B. Oral (PO) [CORRECT]
C. Sublingual (SL)
D. Transdermal
Correct Answer: B
Rationale: The first-pass effect refers to the metabolism of a drug by the liver before it reaches
the systemic circulation, which occurs primarily with oral administration. Drugs absorbed from
the GI tract travel through the portal vein to the liver. IV, sublingual, and transdermal routes
bypass this initial hepatic metabolism, leading to higher bioavailability.
Q2: A client is experiencing a hypertensive crisis. The nurse administers a rapid-acting
antihypertensive. The nurse monitors the client for hypotension, which is an adverse effect of the
medication. Which of the following pharmacodynamic principles describes this?
A. Therapeutic index
B. Therapeutic window [CORRECT]
C. Receptor affinity
D. Half-life
Correct Answer: B
,2
Rationale: The therapeutic window is the range of drug concentrations in the blood between a
subtherapeutic level and a toxic level. A hypertensive crisis often requires aggressive treatment,
but pushing blood pressure too low can lead to hypotension, pushing the drug level outside the
safe window. Therapeutic index refers to the ratio between the toxic dose and effective dose, but
the window describes the safe operating range.
Q3: A nurse is teaching a client about a new prescription for a beta-blocker. Which of the
following statements by the client indicates a need for further teaching?
A. "I will take my pulse every morning."
B. "I can stop taking this medication when I feel better." [CORRECT]
C. "I should change positions slowly to prevent dizziness."
D. "I will report any difficulty breathing to my doctor."
Correct Answer: B
Rationale: Antihypertensive medications, including beta-blockers, should not be abruptly
discontinued as this can cause rebound hypertension or other adverse cardiac events. They must
be tapered under medical supervision. The other statements regarding pulse monitoring,
orthostatic hypotension, and respiratory side effects indicate correct understanding.
Q4: A nurse is reviewing the medication administration record (MAR) for a client. The nurse
identifies that the client has a prescription for a medication that is considered "high-alert" by the
Institute for Safe Medication Practices (ISMP). Which of the following medications falls into
this category?
A. Acetaminophen
B. Heparin (Unfractionated) [CORRECT]
C. Cephalexin
D. Furosemide
Correct Answer: B
Rationale: Heparin is a high-alert medication because it carries a significant risk of causing harm
when used in error (e.g., hemorrhage). Acetaminophen, cephalexin, and furosemide are not
,3
typically listed on the high-alert list that requires special safeguards, although they still require
safe administration practices.
Q5: A client with heart failure is prescribed Lisinopril, an ACE inhibitor. Which of the following
side effects should the nurse instruct the client to report immediately?
A. Dry, non-productive cough
B. Angioedema (swelling of the lips, tongue, or face) [CORRECT]
C. Occasional dizziness
D. Mild fatigue
Correct Answer: B
Rationale: Angioedema is a life-threatening adverse effect of ACE inhibitors caused by the
accumulation of bradykinin. It requires immediate discontinuation and medical attention. While a
dry cough (A) is a common side effect of ACE inhibitors, it is not an emergency like
angioedema.
Q6: A client is taking Digoxin (Lanoxin) for heart failure. The nurse reviews the client's serum
electrolyte results. Which of the following electrolyte imbalances increases the risk of Digoxin
toxicity?
A. Hyponatremia
B. Hypokalemia [CORRECT]
C. Hypercalcemia
D. Hypermagnesemia
Correct Answer: B
Rationale: Hypokalemia (low potassium) increases the binding of Digoxin to cardiac tissues,
significantly increasing the risk of toxicity and dysrhythmias. Hypercalcemia also increases risk,
but hypokalemia is a more frequent clinical concern. Hypermagnesia is less relevant to digoxin
toxicity risk.
, 4
Q7: A nurse is administering Furosemide (Lasix), a loop diuretic, to a client with edema. The
nurse should anticipate which of the following laboratory findings in this client?
A. Hypernatremia
B. Hypokalemia [CORRECT]
C. Hyperkalemia
D. Hyperphosphatemia
Correct Answer: B
Rationale: Furosemide increases the excretion of sodium and water at the Loop of Henle. It also
causes potassium loss, leading to hypokalemia. Monitoring potassium levels and often
supplementing potassium is crucial when administering loop diuretics.
Q8: A client with asthma is prescribed Albuterol, a short-acting beta-agonist (SABA). The nurse
should explain the mechanism of action of this medication as:
A. Preventing the release of inflammatory mediators
B. Relaxing bronchial smooth muscle [CORRECT]
C. Reducing mucosal edema
D. Thickening respiratory secretions
Correct Answer: B
Rationale: Albuterol is a beta-2 adrenergic agonist that stimulates beta-2 receptors in the lungs,
causing relaxation of bronchial smooth muscle and bronchodilation. Corticosteroids primarily act
to reduce inflammation (A) and edema (C).
Q9: A nurse is providing discharge teaching for a client prescribed Warfarin (Coumadin). The
nurse instructs the client to avoid large amounts of which of the following foods?
A. Green beans
C. Spinach [CORRECT]
D. Oranges
HESI RN Pharmacology V1-V3 PDF Bundle
Package Actual Exam 2026/2027 – Complete
Exam-Style Questions with Detailed
Rationales | Pass Guaranteed – A+ Graded
[VERSION 1: HESI Pharmacology V1 — Questions 1-75]
Q1: A nurse is preparing to administer a medication to a client. The nurse understands that the
first-pass effect of the medication occurs with which of the following routes of administration?
A. Intravenous (IV)
B. Oral (PO) [CORRECT]
C. Sublingual (SL)
D. Transdermal
Correct Answer: B
Rationale: The first-pass effect refers to the metabolism of a drug by the liver before it reaches
the systemic circulation, which occurs primarily with oral administration. Drugs absorbed from
the GI tract travel through the portal vein to the liver. IV, sublingual, and transdermal routes
bypass this initial hepatic metabolism, leading to higher bioavailability.
Q2: A client is experiencing a hypertensive crisis. The nurse administers a rapid-acting
antihypertensive. The nurse monitors the client for hypotension, which is an adverse effect of the
medication. Which of the following pharmacodynamic principles describes this?
A. Therapeutic index
B. Therapeutic window [CORRECT]
C. Receptor affinity
D. Half-life
Correct Answer: B
,2
Rationale: The therapeutic window is the range of drug concentrations in the blood between a
subtherapeutic level and a toxic level. A hypertensive crisis often requires aggressive treatment,
but pushing blood pressure too low can lead to hypotension, pushing the drug level outside the
safe window. Therapeutic index refers to the ratio between the toxic dose and effective dose, but
the window describes the safe operating range.
Q3: A nurse is teaching a client about a new prescription for a beta-blocker. Which of the
following statements by the client indicates a need for further teaching?
A. "I will take my pulse every morning."
B. "I can stop taking this medication when I feel better." [CORRECT]
C. "I should change positions slowly to prevent dizziness."
D. "I will report any difficulty breathing to my doctor."
Correct Answer: B
Rationale: Antihypertensive medications, including beta-blockers, should not be abruptly
discontinued as this can cause rebound hypertension or other adverse cardiac events. They must
be tapered under medical supervision. The other statements regarding pulse monitoring,
orthostatic hypotension, and respiratory side effects indicate correct understanding.
Q4: A nurse is reviewing the medication administration record (MAR) for a client. The nurse
identifies that the client has a prescription for a medication that is considered "high-alert" by the
Institute for Safe Medication Practices (ISMP). Which of the following medications falls into
this category?
A. Acetaminophen
B. Heparin (Unfractionated) [CORRECT]
C. Cephalexin
D. Furosemide
Correct Answer: B
Rationale: Heparin is a high-alert medication because it carries a significant risk of causing harm
when used in error (e.g., hemorrhage). Acetaminophen, cephalexin, and furosemide are not
,3
typically listed on the high-alert list that requires special safeguards, although they still require
safe administration practices.
Q5: A client with heart failure is prescribed Lisinopril, an ACE inhibitor. Which of the following
side effects should the nurse instruct the client to report immediately?
A. Dry, non-productive cough
B. Angioedema (swelling of the lips, tongue, or face) [CORRECT]
C. Occasional dizziness
D. Mild fatigue
Correct Answer: B
Rationale: Angioedema is a life-threatening adverse effect of ACE inhibitors caused by the
accumulation of bradykinin. It requires immediate discontinuation and medical attention. While a
dry cough (A) is a common side effect of ACE inhibitors, it is not an emergency like
angioedema.
Q6: A client is taking Digoxin (Lanoxin) for heart failure. The nurse reviews the client's serum
electrolyte results. Which of the following electrolyte imbalances increases the risk of Digoxin
toxicity?
A. Hyponatremia
B. Hypokalemia [CORRECT]
C. Hypercalcemia
D. Hypermagnesemia
Correct Answer: B
Rationale: Hypokalemia (low potassium) increases the binding of Digoxin to cardiac tissues,
significantly increasing the risk of toxicity and dysrhythmias. Hypercalcemia also increases risk,
but hypokalemia is a more frequent clinical concern. Hypermagnesia is less relevant to digoxin
toxicity risk.
, 4
Q7: A nurse is administering Furosemide (Lasix), a loop diuretic, to a client with edema. The
nurse should anticipate which of the following laboratory findings in this client?
A. Hypernatremia
B. Hypokalemia [CORRECT]
C. Hyperkalemia
D. Hyperphosphatemia
Correct Answer: B
Rationale: Furosemide increases the excretion of sodium and water at the Loop of Henle. It also
causes potassium loss, leading to hypokalemia. Monitoring potassium levels and often
supplementing potassium is crucial when administering loop diuretics.
Q8: A client with asthma is prescribed Albuterol, a short-acting beta-agonist (SABA). The nurse
should explain the mechanism of action of this medication as:
A. Preventing the release of inflammatory mediators
B. Relaxing bronchial smooth muscle [CORRECT]
C. Reducing mucosal edema
D. Thickening respiratory secretions
Correct Answer: B
Rationale: Albuterol is a beta-2 adrenergic agonist that stimulates beta-2 receptors in the lungs,
causing relaxation of bronchial smooth muscle and bronchodilation. Corticosteroids primarily act
to reduce inflammation (A) and edema (C).
Q9: A nurse is providing discharge teaching for a client prescribed Warfarin (Coumadin). The
nurse instructs the client to avoid large amounts of which of the following foods?
A. Green beans
C. Spinach [CORRECT]
D. Oranges
