

Chem-20 is a group of 20 chemical tests performed on serum (the portion of blood without cells).
These tests include total cholesterol, total protein, and various electrolytes. Electrolytes in the body include sodium, potassium, chlorine, and many others.
The rest of the tests looks at chemicals that help the liver and kidney breakdown various substances.
SMA20; Sequential multi-channel analysis with computer-20; SMAC20; Metabolic panel 20