However, if the kidneys are not functioning well, potassium can accumulate in the blood. Most sources suggest that normal potassium serum levels are between 3.6–5 millimoles per liter, and levels ...

High levels of potassium in the blood, common in people on certain medications or with kidney disease, often come with no ...

A normal serum potassium level of 3.5 to 5.0 mEq/L is maintained via potassium ingestion, excretion, and distribution between intra- and extracellular fluid. Potassium balance is essential for ...

Medically reviewed by Paria Sanaty Zadeh, PharmD Key Takeaways Serious side effects are more likely to occur when taking high doses, particularly in people with certain health conditions like kidney ...