Question 376 · LEK · Potassium balance

Which of the following can cause spurious hyperkalemia?

  1. A. acidosis.
  2. B. crush syndrome.
  3. C. long immobilization.
  4. D. blood sampling 20-30 min. after insulin administration.
  5. E. disintegration of blood cells during centrifugation.
Hint

Spurious (pseudo-) hyperkalaemia is an in vitro artefact: look for the option in which potassium leaves cells only in the test tube.

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