Synonyms: K

NOTICE:This is a component of the Comprehensive Metabolic panel or Kidney (Function) Panel which may be more economic than ordering this test alone.

Why It Is Done

To determine whether your potassium concentration is within normal limits and to help evaluate an electrolyte imbalance; to monitor chronic or acute hyperkalemia (high potassium) or hypokalemia (low potassium)

Test Overview

Serum or plasma tests for potassium levels are routinely performed in most patients when they are investigated for any type of serious illness. Also, because potassium is so important to heart function, it is usually ordered (along with other electrolytes) during all complete routine evaluations, especially in those who take diuretics or heart medications. Potassium is ordered when a doctor is diagnosing and evaluating high blood pressure and kidney disease and when monitoring a patient receiving dialysis, diuretic therapy, or intravenous therapy.

How To Prepare

No special preparation is necessay