The Ultimate and Complete Prophecy RN Pharmacology Study Guide 2025–2026,
Covering Pharmacokinetics and Pharmacodynamics Principles, Safe Medication
Administration and Nursing Responsibilities, Cardiovascular Respiratory Neurological
and Endocrine Medications, Antibiotics and Antimicrobial Therapy, Pain Management
and Analgesic Pharmacology, Psychiatric and Neurological Drug Classifications,
Intravenous Medication Administration and Dosage Calculations, Adverse Drug
Reactions and Medication Safety, Drug Interactions and Contraindications, Patient
Education and Medication Monitoring Strategies, NCLEX and Prophecy-Style Practice
Questions with Verified Answers and Detailed Rationales, Real Clinical Medication Case
Studies, Step-by-Step Pharmacology Frameworks, and Proven Strategies to
Successfully Master Prophecy RN Pharmacology Assessments and Excel in Nursing
Practice
<b>Question 1: A nurse is caring for a patient with heart failure who has been prescribed
furosemide. Which electrolyte imbalance should the nurse prioritize monitoring for during
therapy?</b>
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypocalcemia
<b>CORRECT ANSWER: B. Hypokalemia</b>
Rationale: Furosemide is a loop diuretic that promotes the excretion of sodium, chloride, and
water, but it also causes significant potassium loss, placing the patient at high risk for
hypokalemia.
<b>Question 2: A patient with hypertension and chronic kidney disease is prescribed
spironolactone. The nurse should instruct the patient to avoid consuming large amounts of
which food?</b>
A. Apples
B. Bananas
C. White rice
D. Chicken breast
<b>CORRECT ANSWER: B. Bananas</b>
,Rationale: Spironolactone is a potassium-sparing diuretic. Consuming high-potassium foods like
bananas can lead to dangerous hyperkalemia, especially in patients with compromised renal
function.
<b>Question 3: A nurse is preparing to administer mannitol to a patient with severe cerebral
edema. Which route of administration is appropriate for this medication?</b>
A. Oral
B. Intramuscular
C. Intravenous
D. Subcutaneous
<b>CORRECT ANSWER: C. Intravenous</b>
Rationale: Mannitol is an osmotic diuretic that must be administered intravenously to rapidly
increase the osmolarity of the blood, drawing fluid out of the brain tissue and reducing
intracranial pressure.
<b>Question 4: A patient taking acetazolamide for glaucoma develops rapid, deep breathing
and confusion. The nurse suspects the patient is experiencing which acid-base imbalance?</b>
A. Metabolic alkalosis
B. Respiratory acidosis
C. Metabolic acidosis
D. Respiratory alkalosis
<b>CORRECT ANSWER: C. Metabolic acidosis</b>
Rationale: Acetazolamide is a carbonic anhydrase inhibitor that causes bicarbonate excretion in
the urine, which can lead to the development of metabolic acidosis.
<b>Question 5: A nurse is reviewing the laboratory results of a patient taking
hydrochlorothiazide. Which finding would indicate an adverse effect of this medication?</b>
A. Serum sodium of 140 mEq/L
B. Serum calcium of 11.5 mg/dL
C. Serum potassium of 4.0 mEq/L
D. Serum magnesium of 2.0 mEq/L
<b>CORRECT ANSWER: B. Serum calcium of 11.5 mg/dL</b>
,Rationale: Thiazide diuretics decrease calcium excretion, which can lead to hypercalcemia.
Normal serum calcium is typically 9.0 to 10.5 mg/dL.
<b>Question 6: A patient with hypertension is prescribed lisinopril. The nurse should monitor
the patient for which common adverse effect unique to this class of medications?</b>
A. Dry, persistent cough
B. Bradycardia
C. Hyperglycemia
D. Constipation
<b>CORRECT ANSWER: A. Dry, persistent cough</b>
Rationale: Lisinopril is an ACE inhibitor. A dry, hacking cough is a common adverse effect caused
by the accumulation of bradykinin in the lungs.
<b>Question 7: A nurse is teaching a patient about a new prescription for losartan. Which
statement by the patient indicates a need for further teaching?</b>
A. I should avoid using salt substitutes.
B. I will report any swelling of my face immediately.
C. I can take ibuprofen for headaches while on this drug.
D. I will rise slowly from a sitting position.
<b>CORRECT ANSWER: C. I can take ibuprofen for headaches while on this drug.</b>
Rationale: NSAIDs like ibuprofen can decrease the antihypertensive effect of ARBs like losartan
and increase the risk of renal impairment. Acetaminophen is a safer alternative.
<b>Question 8: A patient is admitted with a hypertensive crisis and is prescribed intravenous
sodium nitroprusside. What is the most critical monitoring parameter for this patient?</b>
A. Blood pressure continuously
B. Blood glucose levels
C. Respiratory rate hourly
D. Temperature every four hours
<b>CORRECT ANSWER: A. Blood pressure continuously</b>
Rationale: Sodium nitroprusside is a potent, rapid-acting vasodilator. Continuous blood
pressure monitoring is essential to prevent severe hypotension during the infusion.
, <b>Question 9: A nurse is caring for a patient taking metoprolol for angina. Which assessment
finding should prompt the nurse to hold the medication and notify the provider?</b>
A. Blood pressure of 130/80 mmHg
B. Heart rate of 52 beats per minute
C. Respiratory rate of 16 breaths per minute
D. Temperature of 98.6 degrees Fahrenheit
<b>CORRECT ANSWER: B. Heart rate of 52 beats per minute</b>
Rationale: Metoprolol is a beta-blocker that decreases heart rate. A heart rate below 60 beats
per minute typically requires holding the dose to prevent severe bradycardia.
<b>Question 10: A patient with asthma is prescribed propranolol for migraine prophylaxis. The
nurse should recognize that this medication is contraindicated due to which condition?</b>
A. Hypertension
B. Asthma
C. Migraines
D. Tachycardia
<b>CORRECT ANSWER: B. Asthma</b>
Rationale: Propranolol is a non-selective beta-blocker that blocks beta-2 receptors in the lungs,
which can cause bronchoconstriction and trigger a severe asthma exacerbation.
<b>Question 11: A nurse is administering intravenous adenosine to a patient with
supraventricular tachycardia. How should the nurse administer this medication?</b>
A. Slowly over five minutes
B. As rapidly as possible followed by a saline flush
C. Diluted in fifty milliliters of normal saline
D. Via a central venous catheter only
<b>CORRECT ANSWER: B. As rapidly as possible followed by a saline flush</b>
Rationale: Adenosine has an extremely short half-life of less than ten seconds. It must be
pushed rapidly via a proximal port followed immediately by a rapid saline flush to reach the
heart quickly.
Covering Pharmacokinetics and Pharmacodynamics Principles, Safe Medication
Administration and Nursing Responsibilities, Cardiovascular Respiratory Neurological
and Endocrine Medications, Antibiotics and Antimicrobial Therapy, Pain Management
and Analgesic Pharmacology, Psychiatric and Neurological Drug Classifications,
Intravenous Medication Administration and Dosage Calculations, Adverse Drug
Reactions and Medication Safety, Drug Interactions and Contraindications, Patient
Education and Medication Monitoring Strategies, NCLEX and Prophecy-Style Practice
Questions with Verified Answers and Detailed Rationales, Real Clinical Medication Case
Studies, Step-by-Step Pharmacology Frameworks, and Proven Strategies to
Successfully Master Prophecy RN Pharmacology Assessments and Excel in Nursing
Practice
<b>Question 1: A nurse is caring for a patient with heart failure who has been prescribed
furosemide. Which electrolyte imbalance should the nurse prioritize monitoring for during
therapy?</b>
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypocalcemia
<b>CORRECT ANSWER: B. Hypokalemia</b>
Rationale: Furosemide is a loop diuretic that promotes the excretion of sodium, chloride, and
water, but it also causes significant potassium loss, placing the patient at high risk for
hypokalemia.
<b>Question 2: A patient with hypertension and chronic kidney disease is prescribed
spironolactone. The nurse should instruct the patient to avoid consuming large amounts of
which food?</b>
A. Apples
B. Bananas
C. White rice
D. Chicken breast
<b>CORRECT ANSWER: B. Bananas</b>
,Rationale: Spironolactone is a potassium-sparing diuretic. Consuming high-potassium foods like
bananas can lead to dangerous hyperkalemia, especially in patients with compromised renal
function.
<b>Question 3: A nurse is preparing to administer mannitol to a patient with severe cerebral
edema. Which route of administration is appropriate for this medication?</b>
A. Oral
B. Intramuscular
C. Intravenous
D. Subcutaneous
<b>CORRECT ANSWER: C. Intravenous</b>
Rationale: Mannitol is an osmotic diuretic that must be administered intravenously to rapidly
increase the osmolarity of the blood, drawing fluid out of the brain tissue and reducing
intracranial pressure.
<b>Question 4: A patient taking acetazolamide for glaucoma develops rapid, deep breathing
and confusion. The nurse suspects the patient is experiencing which acid-base imbalance?</b>
A. Metabolic alkalosis
B. Respiratory acidosis
C. Metabolic acidosis
D. Respiratory alkalosis
<b>CORRECT ANSWER: C. Metabolic acidosis</b>
Rationale: Acetazolamide is a carbonic anhydrase inhibitor that causes bicarbonate excretion in
the urine, which can lead to the development of metabolic acidosis.
<b>Question 5: A nurse is reviewing the laboratory results of a patient taking
hydrochlorothiazide. Which finding would indicate an adverse effect of this medication?</b>
A. Serum sodium of 140 mEq/L
B. Serum calcium of 11.5 mg/dL
C. Serum potassium of 4.0 mEq/L
D. Serum magnesium of 2.0 mEq/L
<b>CORRECT ANSWER: B. Serum calcium of 11.5 mg/dL</b>
,Rationale: Thiazide diuretics decrease calcium excretion, which can lead to hypercalcemia.
Normal serum calcium is typically 9.0 to 10.5 mg/dL.
<b>Question 6: A patient with hypertension is prescribed lisinopril. The nurse should monitor
the patient for which common adverse effect unique to this class of medications?</b>
A. Dry, persistent cough
B. Bradycardia
C. Hyperglycemia
D. Constipation
<b>CORRECT ANSWER: A. Dry, persistent cough</b>
Rationale: Lisinopril is an ACE inhibitor. A dry, hacking cough is a common adverse effect caused
by the accumulation of bradykinin in the lungs.
<b>Question 7: A nurse is teaching a patient about a new prescription for losartan. Which
statement by the patient indicates a need for further teaching?</b>
A. I should avoid using salt substitutes.
B. I will report any swelling of my face immediately.
C. I can take ibuprofen for headaches while on this drug.
D. I will rise slowly from a sitting position.
<b>CORRECT ANSWER: C. I can take ibuprofen for headaches while on this drug.</b>
Rationale: NSAIDs like ibuprofen can decrease the antihypertensive effect of ARBs like losartan
and increase the risk of renal impairment. Acetaminophen is a safer alternative.
<b>Question 8: A patient is admitted with a hypertensive crisis and is prescribed intravenous
sodium nitroprusside. What is the most critical monitoring parameter for this patient?</b>
A. Blood pressure continuously
B. Blood glucose levels
C. Respiratory rate hourly
D. Temperature every four hours
<b>CORRECT ANSWER: A. Blood pressure continuously</b>
Rationale: Sodium nitroprusside is a potent, rapid-acting vasodilator. Continuous blood
pressure monitoring is essential to prevent severe hypotension during the infusion.
, <b>Question 9: A nurse is caring for a patient taking metoprolol for angina. Which assessment
finding should prompt the nurse to hold the medication and notify the provider?</b>
A. Blood pressure of 130/80 mmHg
B. Heart rate of 52 beats per minute
C. Respiratory rate of 16 breaths per minute
D. Temperature of 98.6 degrees Fahrenheit
<b>CORRECT ANSWER: B. Heart rate of 52 beats per minute</b>
Rationale: Metoprolol is a beta-blocker that decreases heart rate. A heart rate below 60 beats
per minute typically requires holding the dose to prevent severe bradycardia.
<b>Question 10: A patient with asthma is prescribed propranolol for migraine prophylaxis. The
nurse should recognize that this medication is contraindicated due to which condition?</b>
A. Hypertension
B. Asthma
C. Migraines
D. Tachycardia
<b>CORRECT ANSWER: B. Asthma</b>
Rationale: Propranolol is a non-selective beta-blocker that blocks beta-2 receptors in the lungs,
which can cause bronchoconstriction and trigger a severe asthma exacerbation.
<b>Question 11: A nurse is administering intravenous adenosine to a patient with
supraventricular tachycardia. How should the nurse administer this medication?</b>
A. Slowly over five minutes
B. As rapidly as possible followed by a saline flush
C. Diluted in fifty milliliters of normal saline
D. Via a central venous catheter only
<b>CORRECT ANSWER: B. As rapidly as possible followed by a saline flush</b>
Rationale: Adenosine has an extremely short half-life of less than ten seconds. It must be
pushed rapidly via a proximal port followed immediately by a rapid saline flush to reach the
heart quickly.
