Question 110 · LEK · Potassium balance

Physical examination of a patient with glomerular filtration rate 25 mL/min/1.73 m² and potassium level 6.2 mmol/L showed: heart rate 68/min, blood pressure 145/80 mmHg, signs of significant heart failure. Which of the following should be a first-line treatment?

  1. A. infusion of 500 mL 10% glucose + 32 u. short-acting insulin.
  2. B. β₂-mimetic inhalation.
  3. C. 10% solution of calcium chloride - 20 mL i.v.
  4. D. furosemide 40 mg i.v.
  5. E. acute hemodialysis.
Hint

Assess the severity of hyperkalaemia and the volume status; which therapy removes both excess potassium and excess fluid in a patient who still passes urine?

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