SMA20 - CHEM-20
Overview & Description
In the past, doctors used to order groups or panels of laboratory tests in order
to diagnose different conditions. The CHEM-20, a set of 20 tests, was one of these group tests.
These days, doctors most often order the laboratory tests separately depending on the specific
Who is a candidate for the test?
Click on the links below to learn more about why each test might be done.
How is the test performed?
Click on the links below for the individual tests to learn more about how each
test is performed.
Preparation & Expectations
What is involved in preparation for the test?
Click on the links below to learn more about any preparation needed for each
Results and Values
What do the test results mean?
To learn more about individual CHEM-20 tests, click on the links below:
Alanine transaminase, also called ALT or SGPT
Aspartate aminotransferase, also called AST or SGOT
Blood urea nitrogen, also called BUN
Carbon dioxide, also called CO2
',CAPTION,'Gamma-Glutamyl Transferase');" onmouseout="return nd();">Gamma-glutamyl transferase, also called GGT
Lactate dehydrogenase, also called LDH
Author:David T. Moran, MD
Editor:Crist, Gayle P., MS, BA
Reviewer:Melinda Murray Ratini, DO