Which of the following can NOT contribute to hyperkalemia?

Diarrhea typically does not contribute to hyperkalemia; rather, it is generally associated with hypokalemia, a lower-than-normal level of potassium in the blood. This occurs because the body loses electrolytes, including potassium, through fluid loss in the stool. In conditions of significant diarrhea, the increased gastrointestinal loss of potassium can result in lower serum potassium levels, making it less likely to lead to hyperkalemia.

On the other hand, dietary indiscretion, hemolysis, and blood transfusions can lead to increased potassium levels. For instance, high intake of potassium-rich foods (dietary indiscretion) can overwhelm the body’s capacity to excrete potassium, leading to hyperkalemia. Hemolysis can release large amounts of potassium from red blood cells into the bloodstream, causing an increase in serum potassium levels. Similarly, blood transfusions can result in a rise in potassium, especially with older blood products that may have higher potassium levels due to cell lysis during storage.