What are causes of hyperkalemia?
A) Hyperparathyroidism and malnutrition
B) Vomiting and diarrhea
C) Renal failure and crush injuries
D) Hyperaldosteronism and Cushing disease

Question

Quizplus · Accepted Answer

Renal failure and crush injuries are two common causes of hyperkalemia. In renal failure, the kidneys are unable to excrete potassium, leading to its accumulation in the blood. Crush injuries can cause large amounts of potassium to be released from damaged tissues and enter the bloodstream.

Answer: D
 Hyperaldosteronism and Cushing disease can both lead to hyperkalemia. In hyperaldosteronism, excessive aldosterone causes the kidneys to excrete sodium and retain potassium, leading to high levels of potassium in the blood. In Cushing disease, excess cortisol can inhibit the action of insulin, which normally helps to drive potassium into cells. This can lead to hyperkalemia.

Note: Option A and B are incorrect as they are not associated with hyperkalemia.

What Are Causes of Hyperkalemia