Question

A 54-year-old man with known chronic kidney disease (eGFR 35 mL/min/1.73 m²) and diabetes presents with palpitations and weakness. ECG shows peaked T waves and widened QRS complexes. Potassium is 7.1 mmol/L. What is the most urgent treatment?

Accepted Answer

Intravenous calcium gluconate

Answer

Intravenous furosemide

Answer

Oral sodium polystyrene sulfonate

Answer

Oral sodium bicarbonate

Answer

Low-potassium diet advice only

Practice question

A 54-year-old man with known chronic kidney disease (eGFR 35 mL/min/1.73 m²) and diabetes presents with palpitations and weakness. ECG shows peaked T waves and widened QRS complexes. Potassium is 7.1 mmol/L. What is the most urgent treatment?