What is a potassium test, and why is it important?

A potassium test measures the level of potassium in your blood, an essential mineral and electrolyte that supports muscle function, nerve signaling, and heart rhythm. This test helps identify imbalances, such as hypokalemia (low potassium) or hyperkalemia (high potassium), which can lead to serious health issues like muscle weakness, irregular heartbeats, or kidney problems. It is commonly ordered to monitor conditions like hypertension, kidney disease, or when symptoms like fatigue, muscle cramps, or abnormal heart rhythms are present. Maintaining optimal potassium levels is crucial for overall health, and this test provides critical insights into your body’s electrolyte balance.