مريض على ديجوكسين، مستواه ٢٫٤ نانوغرام/مل، ويشتكي غثيان ويشوف هالات صفراء. ما الإجراء الصحيح؟

A client on digoxin has a level of 2.4 ng/mL, nausea and yellow halos. What is correct?

1. Hold it, check potassium and notify the provider
2. Give a potassium-wasting diuretic
3. Give the dose with food to ease nausea
4. Double the dose, as the level is fine

Answer: A) Hold it, check potassium and notify the provider. The therapeutic range is about 0.5–2; nausea and visual changes signal toxicity. Hypokalaemia worsens it; the antidote is digoxin immune Fab.