Some factors that can affect the result are an irregular heart rate, changes in the shape or structure of the heart, or an electrolyte imbalance. An EKG reading is a helpful diagnostic tool.

Your provider can diagnose an electrolyte imbalance with a simple blood test. They will also likely perform a physical exam and medical history and recommend an electrocardiogram (ECG or EKG ...

Electrolytes are minerals that are essential for balancing fluids in the body. Electrolytes also conduct nerve impulses and contract muscles, like your heart. It's important to replenish ...

Physical activity, hot days and illnesses are all times when it’s smart to sip an electrolyte-packed drink. Reviewed by Dietitian Emily Lachtrupp, M.S., RD Reviewed by Dietitian Emily Lachtrupp ...

See the ECG Tutorial section on QT interval to learn how this is measured. Multiple medications, electrolyte abnormalities (hypocalcemia, hypomagnesemia and hypokalemia) and certain disease states ...