Tussna
Digoxin Toxicity: High-Yield NCLEX Review
Written by Tussna NCLEX Editorial Team | Medically Reviewed for NGN Standards
Key NCLEX Facts & Therapeutic Ranges
- ✓ Therapeutic Serum Level: 0.5 – 2.0 ng/mL
- ✓ Early Signs of Toxicity: Anorexia, nausea, vomiting, confusion
- ✓ Visual Hallmark: Yellow-green halos, blurred vision
- ✓ Priority Action: Assess apical pulse for 1 full minute. Hold if heart rate is < 60 bpm in adults
Sample NGN Practice Question
Question: A nurse assesses a client taking Digoxin 0.25 mg daily. Which finding requires immediate intervention?
- A) Serum potassium of 4.8 mEq/L
- B) Apical pulse of 54 beats per minute (Correct)
- C) Blood pressure of 128/82 mmHg
Rationale: Digoxin slows cardiac conduction through the AV node. An apical pulse below 60 bpm requires holding the drug and notifying the provider immediately.