Comprehensive Metabolic Panel (CMP)
Comprehensive Metabolic Panel (CMP) FAQ
What is tested in a Comprehensive Metabolic Panel Test?
Why are the electrolytes in the Comprehensive Metabolic Panel test important?
Why are the liver markers in the Comprehensive Metabolic Panel important?
What type of specimen will I submit?
Do I need to fast to take this test?
How long does it take to get test results?
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Related To The Comprehensive Metabolic Panel (CMP)
CMP Blood Test - More Information
The comprehensive metabolic panel test, also known as the CMP test or the CMP blood test, is a commonly ordered blood panel that checks levels of various important metabolites and electrolytes in the blood.
The CMP test consists of, as the name suggests, a relatively comprehensive set of screening lab tests that can look for abnormalities in various organs like the kidney and liver. Additionally, this metabolic panel is helpful for screening for diabetes, acid-base disturbances, dehydration, protein imbalances and electrolyte abnormalities.
When considering this lab test, some people want to know how it differs from the BMP, or Basic Metabolic Panel. In comparing the CMP versus the BMP blood tests, the comprehensive metabolic panel is actually a more comprehensive form of the basic metabolic panel test because it also includes a set of liver function tests. Thus, for many people, the CMP test is of greater interest given the information it adds about the health of the liver.
The comprehensive metabolic panel is often ordered as part of a routine or annual physical and also as part of a basic screen for most Emergency Room patients. Ideally, an 8-12 hour fast is performed before getting a CMP blood test done but this does not always occur, particularly in emergencies. Because the CMP test is so commonly performed, most lab locations can perform it and it usually only requires a small amount of blood (<2 mL) to perform the test.
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