NCLEX Question of the Day – Saturday, June 20, 2026

Today’s NCLEX question focuses on prioritization in Pharmacology, especially recognizing when a medication side effect has become an urgent safety problem. This skill matters because nurses do not just give drugs. They watch for patterns, connect symptoms to treatment, and act before a patient gets worse. In real practice, noticing one “small” change at the right time can prevent a crisis.

Clinical Scenario

A 72-year-old patient is admitted to a medical-surgical unit with new-onset atrial fibrillation with a rapid ventricular response. The provider prescribes an IV diltiazem infusion after an initial loading dose. Two hours later, the nurse reassesses the patient. The cardiac monitor shows atrial fibrillation with a ventricular rate of 68/min. The patient says, “I feel a little lightheaded when I sit up.” Vital signs are blood pressure 88/54 mm Hg, respirations 18/min, oxygen saturation 97% on room air, and temperature 98.4 F. The patient is awake, answers questions appropriately, and has cool hands with delayed capillary refill.

The Question

Which action should the nurse take first?

Answer Choices

1. Place the patient flat in bed and recheck the blood pressure in 30 minutes.
2. Stop the diltiazem infusion and notify the provider of the patient’s response.
3. Administer the next scheduled oral anticoagulant dose early to reduce stroke risk.
4. Encourage the patient to increase oral fluids to improve circulation.

Correct Answer

B. Stop the diltiazem infusion and notify the provider of the patient’s response.

Detailed Rationale

This question is about connecting a medication’s intended effect with its dangerous adverse effects. Diltiazem is a calcium channel blocker. In atrial fibrillation, it is often used to slow conduction through the AV node and lower the ventricular rate. That part is working here. The heart rate has dropped from rapid to controlled at 68/min.

The problem is that the medication is also lowering blood pressure too much. The patient now has hypotension at 88/54 mm Hg, reports lightheadedness, and shows cool hands with delayed capillary refill. Those findings suggest decreased tissue perfusion. Even though the patient is still awake and oxygenation is normal, the circulation problem is already clinically significant.

The nurse’s first priority is to stop the cause of the worsening perfusion. In this scenario, the likely cause is the diltiazem infusion. Continuing the medication could make the hypotension worse and reduce blood flow to the brain, kidneys, and other organs.

After stopping the infusion, the nurse should notify the provider promptly and be ready to report:

• Current vital signs and heart rhythm
• Time the infusion was started and current rate
• Symptoms such as dizziness or weakness
• Perfusion findings, such as cool skin and delayed capillary refill
• Any recent lab values or other cardiac medications that could add to the effect

The nurse should also continue bedside assessment and monitoring. That includes frequent blood pressure checks, rhythm monitoring, mental status assessment, urine output if available, and watching for signs of shock such as worsening confusion, chest pain, or decreased responsiveness.

This is a classic NCLEX pattern: a treatment is effective in one way but unsafe overall because the patient is not tolerating it. Nurses must look at the whole response, not one number. A controlled heart rate is not enough if the blood pressure is too low to support perfusion.

Why the Other Options Are Wrong

A. Place the patient flat in bed and recheck the blood pressure in 30 minutes.

Positioning may help briefly, but it does not fix the underlying cause. Waiting 30 minutes delays treatment while the patient remains hypotensive. The unsafe medication is still infusing. The first action must remove the trigger.

C. Administer the next scheduled oral anticoagulant dose early to reduce stroke risk.

Stroke prevention is important in atrial fibrillation, but it is not the immediate priority. Giving an anticoagulant early will not treat the current hypotension. In an unstable patient, the nurse addresses airway, breathing, and circulation first. This patient’s urgent problem is circulation.

D. Encourage the patient to increase oral fluids to improve circulation.

This is not the best first action for several reasons. First, oral fluids work slowly. Second, the patient is symptomatic from a medication effect that is still active. Third, encouraging oral intake may be inappropriate if the patient becomes more unstable or needs urgent interventions. The nurse must stop the infusion before considering supportive measures like fluids.

Key Takeaways

• Diltiazem can control heart rate but may also cause hypotension and poor perfusion.
• Do not judge medication effectiveness by one vital sign alone. Look at the whole patient.
• Lightheadedness, cool extremities, delayed capillary refill, and low blood pressure point to decreased perfusion.
• When a medication is causing harm, the first priority is often to stop it and reassess.

• What you’d do on shift:
• Check the most recent vital signs and rhythm trend, not just the current heart rate.
• Assess symptoms: dizziness, chest pain, shortness of breath, confusion.
• Look for perfusion clues: skin temperature, capillary refill, urine output, mental status.
• Stop the infusion if the patient is not tolerating it.
• Notify the provider with clear, organized data.
• Monitor closely for worsening instability and prepare for new orders.

Quick Practice Extension

1. A patient receiving IV metoprolol for rapid atrial fibrillation develops a heart rate of 44/min and new confusion. What assessment finding would make this an emergency rather than a routine side effect?

2. A patient on a diltiazem drip has a blood pressure of 96/60 mm Hg but feels well and has warm skin, clear mentation, and good urine output. What additional data would help you decide whether to continue monitoring or escalate care?

NCLEX Question of the Day – Saturday, June 20, 2026

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