A sweat electrolyte test detects the amount of sodium and chloride in your sweat. It’s also called an iontophoretic sweat test or chloride sweat test. It’s used primarily for people who have symptoms ...

A sodium blood test is a routine test that allows your doctor to see how much sodium is in your blood. It’s also called a serum sodium test. Sodium is an essential mineral to your body. It’s also ...

What Is a Chloride Blood Test? The chloride blood test, sometimes called a Cl test or serum chloride test, is a simple blood test that measures your chloride levels. Why do chloride levels matter? You ...