NCLEX Question of the Day

Today’s question targets Pharmacology, with a focus on safe medication administration and early recognition of adverse effects. This matters in real nursing because the first clue that a drug is harming a patient is often a small assessment change, not a dramatic emergency. Nurses need to connect the medication, the symptom, and the next best action quickly.

Clinical Scenario

A 72-year-old client is admitted to a medical-surgical unit with new-onset atrial fibrillation with a rapid ventricular response. The provider prescribes an intravenous diltiazem infusion after an initial bolus. Two hours later, the nurse assesses the client and notes the following: blood pressure 88/54 mm Hg, heart rate 52/min, respiratory rate 18/min, oxygen saturation 96% on room air, and the client reports feeling lightheaded when turning in bed. The cardiac monitor shows atrial fibrillation with a slow ventricular response. The client is awake, answers questions appropriately, and has warm skin. The infusion is running through a patent IV site.

The Question

What is the nurse’s priority action?

Answer Choices

1. A. Continue the infusion and recheck vital signs in 30 minutes because rate control is the treatment goal
2. B. Stop the diltiazem infusion and notify the provider of symptomatic bradycardia and hypotension
3. C. Place the client flat in bed and encourage oral fluids to improve blood pressure
4. D. Administer the next scheduled dose of digoxin to improve cardiac output

Correct Answer

B. Stop the diltiazem infusion and notify the provider of symptomatic bradycardia and hypotension

Detailed Rationale

Diltiazem is a calcium channel blocker that slows conduction through the AV node. That is why it is often used to control the ventricular rate in atrial fibrillation. The same action that makes it useful can also make it dangerous. If the medication slows the heart too much, cardiac output can fall. Blood pressure can drop. The client may become dizzy, weak, or confused.

In this scenario, the nurse has three important clues: heart rate 52/min, blood pressure 88/54 mm Hg, and lightheadedness. That combination points to an adverse medication effect that is now causing symptoms. This is not just a “watch and wait” finding. The infusion is still running, so the problem can worsen if the medication continues.

The priority is to stop the infusion first. This removes the likely cause of the unstable trend. After that, the nurse should notify the provider promptly and be ready to report the client’s current vital signs, rhythm, symptoms, infusion rate, timing of the bolus, and any recent lab results that affect cardiac function, such as potassium or magnesium levels if available.

The nurse should also continue focused assessment. That means checking level of consciousness, skin perfusion, chest pain, shortness of breath, urine output if known, and whether the blood pressure remains low after the infusion is stopped. Because the client is symptomatic, the nurse should stay with the client, ensure safety with position changes, and prepare for possible additional orders. Those orders might include reducing or discontinuing the infusion, obtaining a 12-lead ECG, or giving supportive treatment if the client becomes more unstable.

Monitoring matters here because medication-related bradycardia can worsen quickly, especially in older adults. Age can reduce physiologic reserve, and small drops in blood pressure may cause significant symptoms. The nurse’s role is not only to recognize the pattern but to act before reduced perfusion leads to a fall, syncope, or organ hypoperfusion.

Why the Other Options Are Wrong

A. Continue the infusion and recheck vital signs in 30 minutes because rate control is the treatment goal

This is unsafe. Rate control is the goal, but not at the expense of perfusion. The client already has signs of intolerance to the medication. Bradycardia plus hypotension plus dizziness means the treatment is now causing harm. Waiting 30 minutes could allow the client to deteriorate.

C. Place the client flat in bed and encourage oral fluids to improve blood pressure

Positioning may temporarily help symptoms, but it does not address the cause. The likely cause is the diltiazem infusion. Also, encouraging oral fluids is not the priority in a symptomatic cardiac client, and it may be inappropriate if the client has fluid restrictions, swallowing concerns, or heart failure risk. First, stop the medication that is lowering the heart rate and blood pressure.

D. Administer the next scheduled dose of digoxin to improve cardiac output

This is the most dangerous option. Digoxin also slows AV node conduction. Giving it in a client who is already bradycardic could worsen the low heart rate and make perfusion poorer. Before giving any additional rate-controlling medication, the nurse must recognize that the current problem is excessive rate slowing, not inadequate treatment.

Key Takeaways

• Rate-controlling drugs can become harmful when they cause symptomatic bradycardia or hypotension.
• The key assessment is not just the monitor. It is the combination of rhythm, vital signs, and symptoms.
• When an IV medication is causing an adverse effect, the first nursing action is often to stop the infusion.
• Older adults may show medication intolerance quickly because they have less reserve.
• Never give another AV node-slowing drug when the client is already bradycardic unless specifically directed and clearly appropriate.

What you’d do on shift:

• Confirm the vital signs and symptoms.
• Stop the diltiazem infusion.
• Stay with the client and prevent falls.
• Reassess blood pressure, heart rate, rhythm, and mental status.
• Notify the provider with clear, organized data.
• Prepare for follow-up orders and continued monitoring.

Quick Practice Extension

1. A client receiving IV metoprolol for tachyarrhythmia develops wheezing and shortness of breath. What assessment finding would most strongly affect your next action?
2. A client taking oral digoxin reports nausea and sees yellow halos around lights. What medication and lab review should the nurse prioritize before giving the next dose?

Questions like this test more than drug facts. They test whether you can notice when a treatment goal has gone too far and shift from routine administration to patient protection. On the NCLEX and on the floor, the safest nurse is the one who recognizes subtle instability early and acts on it.

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