which of the following causes hyperkalemia, exercise of decreased extracellular osmolality?

Hyperkalemia, which is an abnormally high level of potassium in the blood, can be caused by a variety of factors.

1. Exercise: Intense exercise can cause hyperkalemia because it can lead to the breakdown of muscle cells, which releases potassium into the bloodstream. However, this is usually a temporary condition that corrects itself as the body recovers from the exercise.

2. Decreased extracellular osmolality: This can also cause hyperkalemia. Osmolality refers to the concentration of solutes in the body. When extracellular osmolality decreases, it can cause cells to swell and potentially burst, releasing their contents, including potassium, into the bloodstream.

So, both exercise and decreased extracellular osmolality can potentially cause hyperkalemia. However, these are not the only causes. Other potential causes include kidney disease, certain medications, and a diet high in potassium.