KAPLAN NCLEX-RN PHARMACOLOGY EXAM PRACTICE |
COMPREHENSIVE STUDY GUIDE | ADVANCED
TESTBANK | PRACTICE QUESTIONS & ANSWERS |
LATEST UPDATE 2026/2027
TABLE OF CONTENTS
i. Pharmacokinetics, Pharmacodynamics & Medication Safety
ii. Cardiovascular & Hematologic Pharmacology
iii. Endocrine & Metabolic Medications
iv. Neurologic & Psychiatric Pharmacology
v. Anti-Infective & Antimicrobial Therapy
vi. Respiratory & Gastrointestinal Medications
vii. Analgesics, Anti-Inflammatories & Emergency Medications
viii. Maternal, Pediatric & Geriatric Pharmacology
ix. Adverse Drug Reactions, Interactions & Toxicity
x. Clinical Judgment, Prioritization & Medication Administration
INTRODUCTION
This advanced Kaplan NCLEX-RN Pharmacology practice examination is designed to
assess the clinical reasoning expected of graduate-level nursing learners and
candidates preparing for high-stakes professional licensure examinations. Questions
emphasize medication safety, pharmacokinetics, pharmacodynamics, adverse effects,
drug interactions, contraindications, laboratory interpretation, patient education,
prioritization, and clinical judgment. Rather than relying primarily on memorization, the
examination requires application of pharmacologic principles to complex patient
scenarios and recognition of subtle changes that may indicate toxicity or treatment
failure. Expect realistic clinical situations involving multiple medications, comorbidities,
high-alert drugs, and competing priorities. The questions span major pharmacologic
categories and emphasize identifying the safest nursing action based on assessment
findings, medication properties, and patient-specific risk factors.
Question 1
A client with heart failure is prescribed digoxin 0.125 mg PO daily and furosemide 40
mg PO daily. The client reports nausea, anorexia, and seeing yellow-green halos around
,lights. The apical pulse is 54/min, and the potassium level is 3.0 mEq/L. Which action
should the nurse take first?
A. Administer the prescribed digoxin with food.
B. Hold digoxin and notify the healthcare provider.
C. Administer potassium supplementation and recheck the pulse in 1 hour.
D. Give furosemide as prescribed and monitor the client for dehydration.
🔴 Correct Answer: B. Hold digoxin and notify the healthcare provider.
🔵 Explanation: The client demonstrates classic manifestations of digoxin toxicity,
including gastrointestinal symptoms, visual disturbances, and bradycardia. Hypokalemia
caused by furosemide increases myocardial sensitivity to digoxin and substantially
increases toxicity risk. The nurse should withhold digoxin and promptly notify the
provider. Potassium replacement may be necessary, but the immediate priority is
preventing additional digoxin exposure.
Question 2
A client receiving a continuous IV heparin infusion has an aPTT significantly above the
therapeutic range and develops hematuria. Which intervention is the nurse's priority?
A. Stop the heparin infusion.
B. Administer the next scheduled dose of warfarin.
C. Encourage oral fluids to dilute the urine.
D. Apply pressure to the client's lower abdomen.
🔴 Correct Answer: A. Stop the heparin infusion.
🔵 Explanation: Excessive anticoagulation accompanied by active bleeding requires
immediate cessation of the heparin infusion and provider notification. Continuing heparin
could worsen hemorrhage. Protamine sulfate may be prescribed as a reversal agent
depending on the severity of bleeding and clinical circumstances.
Question 3
A client taking warfarin for atrial fibrillation reports beginning a new medication
prescribed for a bacterial infection. Which finding requires the nurse to intervene most
urgently?
A. The client reports mild nausea after taking the antibiotic.
B. The client reports eating fewer leafy green vegetables.
C. The client reports black, tarry stools.
D. The client reports a mild headache after taking the medication.
,🔴 Correct Answer: C. The client reports black, tarry stools.
🔵 Explanation: Melena suggests gastrointestinal bleeding and is particularly concerning
in a client receiving anticoagulation. Antibiotics can alter vitamin K availability or
interfere with warfarin metabolism, potentially increasing anticoagulant effects. The
nurse should treat suspected GI bleeding as a priority and arrange prompt evaluation.
Question 4
A client with type 1 diabetes is prescribed insulin lispro before meals. The client's blood
glucose is 72 mg/dL immediately before breakfast, and breakfast will not be available
for another 30 minutes. Which action should the nurse take?
A. Administer the insulin because the glucose is within the normal range.
B. Administer half of the prescribed insulin dose.
C. Hold the insulin and address the client's low glucose level.
D. Administer the insulin and provide a high-protein snack.
🔴 Correct Answer: C. Hold the insulin and address the client's low glucose level.
🔵 Explanation: Insulin lispro is rapid-acting and is intended to correspond closely with
food intake. A glucose of 72 mg/dL combined with delayed access to food creates a
significant hypoglycemia risk. The nurse should follow the hypoglycemia protocol,
reassess glucose, and administer prandial insulin only when clinically appropriate.
Question 5
A client receiving lisinopril develops swelling of the lips and tongue and reports
difficulty swallowing. Which action is the nurse's priority?
A. Administer the next dose with food.
B. Place the client supine and reassess in 30 minutes.
C. Hold the medication and initiate emergency airway management measures.
D. Encourage fluids to reduce the concentration of the medication.
🔴 Correct Answer: C. Hold the medication and initiate emergency airway
management measures.
🔵 Explanation: Angioedema associated with an ACE inhibitor can rapidly progress to
airway obstruction and respiratory failure. The medication must be discontinued, and
airway and breathing take priority. This reaction represents a potentially life-threatening
adverse effect rather than a routine medication intolerance.
Question 6
, A client prescribed spironolactone for heart failure has a potassium level of 5.8 mEq/L.
Which prescription should the nurse question?
A. Daily weight measurement.
B. Low-sodium diet.
C. Potassium chloride supplementation.
D. Monitoring of blood pressure.
🔴 Correct Answer: C. Potassium chloride supplementation.
🔵 Explanation: Spironolactone is a potassium-sparing diuretic. Combining it with
potassium supplementation in a client who already has hyperkalemia increases the risk of
dangerous cardiac dysrhythmias. Potassium levels and renal function require close
monitoring during therapy.
Question 7
A client receiving IV vancomycin develops flushing and erythema over the face, neck,
and upper torso during the infusion. Blood pressure is 88/54 mm Hg. Which action
should the nurse take first?
A. Increase the infusion rate.
B. Stop the infusion and assess the client.
C. Administer the next dose early.
D. Document the finding as an expected therapeutic response.
🔴 Correct Answer: B. Stop the infusion and assess the client.
🔵 Explanation: Rapid vancomycin administration can cause infusion-related flushing,
hypotension, and erythema, commonly called vancomycin infusion reaction. The infusion
should be stopped and the client assessed. Future administration generally requires
slower infusion and may involve additional prescribed interventions.
Question 8
A client receiving gentamicin for a severe infection reports new difficulty hearing and
ringing in both ears. Which laboratory or assessment finding would most strongly
reinforce the nurse's concern?
A. Elevated serum creatinine.
B. Increased platelet count.
C. Decreased serum sodium.
D. Increased hemoglobin.
COMPREHENSIVE STUDY GUIDE | ADVANCED
TESTBANK | PRACTICE QUESTIONS & ANSWERS |
LATEST UPDATE 2026/2027
TABLE OF CONTENTS
i. Pharmacokinetics, Pharmacodynamics & Medication Safety
ii. Cardiovascular & Hematologic Pharmacology
iii. Endocrine & Metabolic Medications
iv. Neurologic & Psychiatric Pharmacology
v. Anti-Infective & Antimicrobial Therapy
vi. Respiratory & Gastrointestinal Medications
vii. Analgesics, Anti-Inflammatories & Emergency Medications
viii. Maternal, Pediatric & Geriatric Pharmacology
ix. Adverse Drug Reactions, Interactions & Toxicity
x. Clinical Judgment, Prioritization & Medication Administration
INTRODUCTION
This advanced Kaplan NCLEX-RN Pharmacology practice examination is designed to
assess the clinical reasoning expected of graduate-level nursing learners and
candidates preparing for high-stakes professional licensure examinations. Questions
emphasize medication safety, pharmacokinetics, pharmacodynamics, adverse effects,
drug interactions, contraindications, laboratory interpretation, patient education,
prioritization, and clinical judgment. Rather than relying primarily on memorization, the
examination requires application of pharmacologic principles to complex patient
scenarios and recognition of subtle changes that may indicate toxicity or treatment
failure. Expect realistic clinical situations involving multiple medications, comorbidities,
high-alert drugs, and competing priorities. The questions span major pharmacologic
categories and emphasize identifying the safest nursing action based on assessment
findings, medication properties, and patient-specific risk factors.
Question 1
A client with heart failure is prescribed digoxin 0.125 mg PO daily and furosemide 40
mg PO daily. The client reports nausea, anorexia, and seeing yellow-green halos around
,lights. The apical pulse is 54/min, and the potassium level is 3.0 mEq/L. Which action
should the nurse take first?
A. Administer the prescribed digoxin with food.
B. Hold digoxin and notify the healthcare provider.
C. Administer potassium supplementation and recheck the pulse in 1 hour.
D. Give furosemide as prescribed and monitor the client for dehydration.
🔴 Correct Answer: B. Hold digoxin and notify the healthcare provider.
🔵 Explanation: The client demonstrates classic manifestations of digoxin toxicity,
including gastrointestinal symptoms, visual disturbances, and bradycardia. Hypokalemia
caused by furosemide increases myocardial sensitivity to digoxin and substantially
increases toxicity risk. The nurse should withhold digoxin and promptly notify the
provider. Potassium replacement may be necessary, but the immediate priority is
preventing additional digoxin exposure.
Question 2
A client receiving a continuous IV heparin infusion has an aPTT significantly above the
therapeutic range and develops hematuria. Which intervention is the nurse's priority?
A. Stop the heparin infusion.
B. Administer the next scheduled dose of warfarin.
C. Encourage oral fluids to dilute the urine.
D. Apply pressure to the client's lower abdomen.
🔴 Correct Answer: A. Stop the heparin infusion.
🔵 Explanation: Excessive anticoagulation accompanied by active bleeding requires
immediate cessation of the heparin infusion and provider notification. Continuing heparin
could worsen hemorrhage. Protamine sulfate may be prescribed as a reversal agent
depending on the severity of bleeding and clinical circumstances.
Question 3
A client taking warfarin for atrial fibrillation reports beginning a new medication
prescribed for a bacterial infection. Which finding requires the nurse to intervene most
urgently?
A. The client reports mild nausea after taking the antibiotic.
B. The client reports eating fewer leafy green vegetables.
C. The client reports black, tarry stools.
D. The client reports a mild headache after taking the medication.
,🔴 Correct Answer: C. The client reports black, tarry stools.
🔵 Explanation: Melena suggests gastrointestinal bleeding and is particularly concerning
in a client receiving anticoagulation. Antibiotics can alter vitamin K availability or
interfere with warfarin metabolism, potentially increasing anticoagulant effects. The
nurse should treat suspected GI bleeding as a priority and arrange prompt evaluation.
Question 4
A client with type 1 diabetes is prescribed insulin lispro before meals. The client's blood
glucose is 72 mg/dL immediately before breakfast, and breakfast will not be available
for another 30 minutes. Which action should the nurse take?
A. Administer the insulin because the glucose is within the normal range.
B. Administer half of the prescribed insulin dose.
C. Hold the insulin and address the client's low glucose level.
D. Administer the insulin and provide a high-protein snack.
🔴 Correct Answer: C. Hold the insulin and address the client's low glucose level.
🔵 Explanation: Insulin lispro is rapid-acting and is intended to correspond closely with
food intake. A glucose of 72 mg/dL combined with delayed access to food creates a
significant hypoglycemia risk. The nurse should follow the hypoglycemia protocol,
reassess glucose, and administer prandial insulin only when clinically appropriate.
Question 5
A client receiving lisinopril develops swelling of the lips and tongue and reports
difficulty swallowing. Which action is the nurse's priority?
A. Administer the next dose with food.
B. Place the client supine and reassess in 30 minutes.
C. Hold the medication and initiate emergency airway management measures.
D. Encourage fluids to reduce the concentration of the medication.
🔴 Correct Answer: C. Hold the medication and initiate emergency airway
management measures.
🔵 Explanation: Angioedema associated with an ACE inhibitor can rapidly progress to
airway obstruction and respiratory failure. The medication must be discontinued, and
airway and breathing take priority. This reaction represents a potentially life-threatening
adverse effect rather than a routine medication intolerance.
Question 6
, A client prescribed spironolactone for heart failure has a potassium level of 5.8 mEq/L.
Which prescription should the nurse question?
A. Daily weight measurement.
B. Low-sodium diet.
C. Potassium chloride supplementation.
D. Monitoring of blood pressure.
🔴 Correct Answer: C. Potassium chloride supplementation.
🔵 Explanation: Spironolactone is a potassium-sparing diuretic. Combining it with
potassium supplementation in a client who already has hyperkalemia increases the risk of
dangerous cardiac dysrhythmias. Potassium levels and renal function require close
monitoring during therapy.
Question 7
A client receiving IV vancomycin develops flushing and erythema over the face, neck,
and upper torso during the infusion. Blood pressure is 88/54 mm Hg. Which action
should the nurse take first?
A. Increase the infusion rate.
B. Stop the infusion and assess the client.
C. Administer the next dose early.
D. Document the finding as an expected therapeutic response.
🔴 Correct Answer: B. Stop the infusion and assess the client.
🔵 Explanation: Rapid vancomycin administration can cause infusion-related flushing,
hypotension, and erythema, commonly called vancomycin infusion reaction. The infusion
should be stopped and the client assessed. Future administration generally requires
slower infusion and may involve additional prescribed interventions.
Question 8
A client receiving gentamicin for a severe infection reports new difficulty hearing and
ringing in both ears. Which laboratory or assessment finding would most strongly
reinforce the nurse's concern?
A. Elevated serum creatinine.
B. Increased platelet count.
C. Decreased serum sodium.
D. Increased hemoglobin.
