A chemistry screen is a blood test that measures the levels of several substances in the blood (such as Reference electrolytes Opens New Window). A chemistry screen tells your doctor about your general health, helps look for certain problems, and finds out whether treatment for a specific problem is working.
Some chemistry screens look at more substances in the blood than others do. The most complete form of a chemistry screen (called a chem-20, SMA-20, or SMAC-20) looks at 20 different things in the blood. Other types of chemistry screens (such as an SMA-6, SMA-7, or SMA-12) look at fewer. The type of chemistry screen you have done depends on what information your doctor is looking for.
For more information about specific parts of a chemistry screen, see:
- Reference Albumin.
- Reference Alkaline Phosphatase.
- Reference Alanine Aminotransferase (ALT).
- Reference Aspartate Aminotransferase (AST).
- Reference Bilirubin (total and direct).
- Reference Blood Glucose.
- Reference Blood Urea Nitrogen.
- Reference Calcium (Ca) in Blood.
- Reference Carbon Dioxide (Bicarbonate).
- Reference Chloride (Cl).
- Reference Cholesterol and Triglycerides Tests.
- Reference Creatinine and Creatinine Clearance.
- Reference Gamma-Glutamyl Transferase (GGT) Opens New Window.
- Reference Lactate Dehydrogenase Opens New Window.
- Reference Phosphate in Blood.
- Reference Potassium (K) in Blood.
- Reference Sodium (Na) in Blood.
- Reference Total Serum Protein.
- Reference Uric Acid in Blood.
|By:||Reference Healthwise Staff||Last Revised: Reference March 26, 2012|
|Medical Review:||Reference E. Gregory Thompson, MD - Internal Medicine
Reference Thomas M. Bailey, MD - Family Medicine