Comprehensive Metbolic Panel (CMP)

CPT Code:



Test Includes:

Alanine aminotransferase (ALT/SGPT); albumin:globulin (A:G) ratio; albumin, serum; alkaline phosphatase, serum; aspartate aminotransferase (AST/SGOT); bilirubin, total; BUN; BUN:creatinine ratio; calcium, serum; carbon dioxide, total; chloride, serum; creatinine, serum; eGFR calculation; globulin, total; glucose, serum; potassium, serum; protein, total, serum; sodium, serum


Serum (preferred) or plasma


1 mL

Minimum Volume:

0.5 mL (Note: This volume does not allow for repeat testing.)


Gel-barrier tube (send entire tube) is preferred. Red-top tube or green-top (heparin) tube is acceptable.


Draw blood in gel-barrier tube and centrifuge. If red-top tube or green-top tube is used, centrifuge within 45 minutes of draw, remove the serum or plasma, and place in a transport tube and tightly stopper the tube.

Storage Instructions:
























Temperature   Period
Room temperature  3 days 
Refrigerated  3 days 
Frozen  14 days 
Freeze/thaw cycles Stable x2







Patient Preparation:  Patient should fast for 12 hours preceding collection of specimen. 
Methodology:  See individual tests.