High Blood Potassium has an excessive potassium concentration in the blood. Potassium is an electrolyte, a mineral that your body requires to function correctly. Potassium is very beneficial to your nerves and muscles, as well as your heart.
While potassium is essential for good health, too much of it can be just as detrimental as, if not worse than, not enough. Your kidneys usually maintain a healthy potassium balance by eliminating excess potassium from your body. However, the quantity of potassium in your blood can become excessively high for various reasons. Hyperkalemia, or excess potassium, is the medical term for this condition.