Today’s question targets priority setting in Pharmacology, especially how to recognize an early medication complication before it becomes an emergency. This matters in real nursing because many serious adverse effects start with subtle assessment findings. A nurse who catches the pattern early can prevent harm, notify the provider with useful data, and keep the patient safe.
Clinical Scenario
A 72-year-old client is admitted to a medical unit with worsening heart failure. The client has a history of atrial fibrillation, hypertension, and chronic kidney disease. Current medications include furosemide, lisinopril, and digoxin. On the second hospital day, the nurse reviews the morning assessment and notes that the client reports poor appetite, mild nausea, and “seeing yellow-green halos” around the wall clock. The apical pulse is 54/min and regular. Blood pressure is 118/66 mm Hg. Potassium level from the morning lab draw is 3.1 mEq/L. The client is due for the scheduled digoxin dose.
The Question
Which action should the nurse take first?
Answer Choices
- Administer the digoxin as prescribed and reassess the client in 1 hour.
- Hold the digoxin dose and notify the provider of the findings.
- Give the prescribed antiemetic for nausea before administering digoxin.
- Encourage the client to increase oral fluids and continue routine monitoring.
Correct Answer
B. Hold the digoxin dose and notify the provider of the findings.
Detailed Rationale
This client is showing several classic signs of digoxin toxicity. The important clue is not just one symptom. It is the cluster of findings: nausea, poor appetite, visual changes, bradycardia, and hypokalemia.
The nurse should first recognize that digoxin has a narrow therapeutic range. That means even a small change in body handling of the drug can lead to toxic effects. Older adults are at higher risk because kidney function often declines with age, and this client already has chronic kidney disease. Digoxin is cleared by the kidneys, so reduced kidney function can allow the drug to build up.
The low potassium level matters because hypokalemia increases the effects of digoxin on the heart. In simple terms, when potassium is low, digoxin binds more strongly at its site of action. That makes toxic effects more likely, especially dysrhythmias and symptomatic bradycardia. This client’s potassium is 3.1 mEq/L, which is below normal and a major safety concern.
The apical pulse is 54/min. Before giving digoxin, the nurse should assess the apical heart rate for a full minute. In adults, digoxin is commonly held if the apical pulse is below 60/min, depending on the order parameters and facility policy. Here, the client is also symptomatic, which makes holding the medication even more important.
The visual complaint about yellow-green halos is a high-yield toxicity clue. While not every client with digoxin toxicity reports this, when it appears with nausea and bradycardia, it should raise concern right away.
So the first action is to hold the scheduled digoxin. Then the nurse should notify the provider and report the assessment findings clearly: current pulse, symptoms, potassium level, kidney disease history, and timing of the last dose. The provider may order a serum digoxin level, repeat electrolytes, telemetry monitoring, potassium replacement, or medication adjustments.
After that, the nurse should continue focused monitoring. This includes:
- Rechecking apical pulse and rhythm
- Monitoring for worsening nausea, vomiting, confusion, or dizziness
- Watching for new dysrhythmias on telemetry if available
- Reviewing renal function labs such as creatinine and BUN
- Following up on potassium replacement and repeat lab results
The nurse should also think about the reason this happened. The client is taking furosemide, a loop diuretic that can lower potassium. That does not mean furosemide is wrong, but it does mean the nurse must connect medication effects across the full drug profile. Safe nursing care often depends on seeing how one medication increases the risk of another.
Why the Other Options Are Wrong
A. Administer the digoxin as prescribed and reassess the client in 1 hour.
This is unsafe. The client already has multiple signs of possible toxicity. Giving the dose could worsen bradycardia or trigger a serious dysrhythmia. Reassessment later is not enough when the findings already suggest harm.
C. Give the prescribed antiemetic for nausea before administering digoxin.
This treats one symptom while missing the cause. Nausea here is not just an isolated comfort issue. It may be an early toxicity sign. Masking it and then giving the medication could delay recognition of a dangerous adverse effect.
D. Encourage the client to increase oral fluids and continue routine monitoring.
This does not address the immediate risk. Fluids do not correct suspected digoxin toxicity, and “routine monitoring” is too passive for a client with bradycardia, visual changes, and hypokalemia. The nurse needs to intervene now.
Key Takeaways
- Digoxin toxicity can present with nausea, anorexia, visual changes, and bradycardia.
- Hypokalemia increases the risk of digoxin toxicity.
- Older adults and clients with kidney disease are more vulnerable because digoxin can accumulate.
- Always check the apical pulse before giving digoxin. If it is low or the client is symptomatic, hold the dose and investigate.
- Do not treat a likely adverse effect as a minor symptom without looking at the full clinical picture.
What you’d do on shift:
- Take the apical pulse for a full minute before digoxin.
- Ask about nausea, appetite, vision changes, dizziness, and palpitations.
- Review potassium and renal function before administration when risk factors are present.
- Hold digoxin for concerning findings and notify the provider promptly.
- Monitor rhythm, symptoms, and repeat labs after intervention.
Quick Practice Extension
1. A client taking digoxin and a loop diuretic has new confusion and an irregular pulse. What focused assessments should the nurse complete before calling the provider?
2. A client with heart failure asks why potassium levels matter while taking digoxin. How would you explain this in simple patient teaching language?
NCLEX Question of the Day – Saturday, April 11, 2026 is a good reminder that safe medication administration is more than checking the MAR. It means linking symptoms, vital signs, lab values, and drug actions. That is the kind of thinking bedside nurses use every day.
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