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Question 185 · LEK · Emergencies and acute complications

A 24-year-old man has been transported to the ER because of a coma. The physical examination shows low blood pressure and tachycardia and the results of lab tests are as follows: plasma glucose 432 mg/dL, pH 7.1, HCO₃⁻ 9 mmol/L, Na 141 mmol/L, K 6.1 mmol/L, serum creatinine 106 µmol/L (1.2 mg/dL). What is the most probable diagnosis?

  1. A. acute kidney injury.
  2. B. chronic kidney disease.
  3. C. ketoacidosis.
  4. D. cirrhosis of the liver.
  5. E. potassium intoxication.
Hint

Combine marked hyperglycemia with a low pH and very low bicarbonate in a young patient.

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