Pharmacology for Nursing Complete Concept
Review 2026 | Drug Classes, Mechanisms,
Nursing Implications | NCLEX-AlignedPass
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Pharmacology for Nursing Complete Concept Review 2026 | Drug Classes, Mechanisms, Nursing Implications | NCLEX-Aligned | Mnemonics — 2026/2027 | Passing Score: pass/fail | Page 2 of 37
, Implications | NCLEX-Aligned | Mnemonics 2026/2027
SECTION 1 | Pharmacological Principles & Drug Calculations | Q1-Q12 | Pharmacology for Nursing Complete Concept Review 2026 | Drug Classes, Mechanisms, Nursing
Q1 Question 1 of 85
A 68-year-old patient with heart failure is prescribed furosemide 40 mg PO daily. The patient also
takes digoxin 0.25 mg daily and lisinopril 10 mg daily. Before administering the furosemide, the
nurse's highest priority assessment is to review which laboratory value?
A. Serum potassium level
B. Blood pressure
C. Apical heart rate
D. Daily weight
Correct Answer: A
Rationale:
Furosemide is a loop diuretic that causes potassium wasting. Hypokalemia increases the risk of digoxin toxicity, which
can cause life-threatening arrhythmias. While blood pressure, heart rate, and weight are important assessments, the
potassium level is the highest priority due to the interaction with digoxin.
Q2 Question 2 of 85
A nurse is preparing to administer heparin 5,000 units subcutaneously. The vial is labeled 10,000
units per mL. How many mL should the nurse administer?
A. 0.25 mL
B. 0.5 mL
C. 1.0 mL
D. 2.0 mL
Correct Answer: B
Rationale:
Using the ratio-proportion method, 10,000 units to 1 mL equals 5,000 units to X mL. Solving for X gives 0.5 mL. The
nurse should verify the calculation with another nurse before administration.
Pharmacology for Nursing Complete Concept Review 2026 | Drug Classes, Mechanisms, Nursing Implications | NCLEX-Aligned | Mnemonics — 2026/2027 | Passing Score: pass/fail | Page 3 of 37
,Q3 Question 3 of 85
A 45-year-old patient with asthma is prescribed propranolol for hypertension. The nurse contacts the
prescriber to clarify this order because propranolol can cause which adverse effect in patients with
asthma?
A. Bronchodilation
B. Tachycardia
C. Bronchospasm
D. Hyperglycemia
Correct Answer: C
Rationale:
Propranolol is a non-selective beta-blocker that blocks beta-2 receptors in the lungs, causing bronchoconstriction and
bronchospasm. This is dangerous for patients with asthma. Beta-1 selective blockers like metoprolol are preferred in
patients with reactive airway disease.
Q4 Question 4 of 85
A nurse is teaching a patient about a new prescription for warfarin 5 mg daily. Which statement by
the patient indicates understanding of dietary considerations?
A. I will increase my intake of green leafy vegetables.
B. I should avoid all dairy products while taking this medication.
C. I must eliminate all carbohydrates from my diet.
D. I need to maintain a consistent intake of vitamin K-rich foods.
Correct Answer: D
Rationale:
Warfarin works by inhibiting vitamin K-dependent clotting factors. Consistent vitamin K intake is essential because
sudden increases or decreases can alter the INR. Patients should not avoid vitamin K foods entirely but maintain
consistency.
Pharmacology for Nursing Complete Concept Review 2026 | Drug Classes, Mechanisms, Nursing Implications | NCLEX-Aligned | Mnemonics — 2026/2027 | Passing Score: pass/fail | Page 4 of 37
, Q5 Question 5 of 85
A 3-year-old child weighs 33 lb and is prescribed acetaminophen 10 mg/kg PO every 4-6 hours as
needed for fever. The suspension available is 160 mg/5 mL. How many mL should the nurse
administer per dose?
A. 4.7 mL
B. 2.5 mL
C. 5.0 mL
D. 7.5 mL
Correct Answer: A
Rationale:
First convert 33 lb to kilograms: 33 divided by 2.2 equals 15 kg. Then calculate the dose: 15 kg times 10 mg/kg equals
150 mg. Using the concentration 160 mg/5 mL, the volume is 150 divided by 160 times 5, which equals 4.6875 mL,
rounded to 4.7 mL.
Q6 Question 6 of 85
A patient receiving morphine via patient-controlled analgesia reports itching and mild respiratory
depression. The nurse reviews the medication history and notes concurrent use of a benzodiazepine.
The nurse recognizes that benzodiazepines have which effect when combined with opioids?
A. Increased analgesia
B. Potentiated CNS and respiratory depression
C. Decreased sedation
D. Reduced itching
Correct Answer: B
Rationale:
Benzodiazepines and opioids both depress the central nervous system. When used together, they produce additive or
synergistic effects on sedation and respiratory depression. The nurse should monitor respiratory rate and oxygen
saturation closely.
Pharmacology for Nursing Complete Concept Review 2026 | Drug Classes, Mechanisms, Nursing Implications | NCLEX-Aligned | Mnemonics — 2026/2027 | Passing Score: pass/fail | Page 5 of 37