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Beaumont Laboratory

Comprehensive Metabolic Panel (CMP)

Comprehensive Metabolic, Panel, CMP, Comp Panel, Comprehensive Metabolic Panel, Antrim #19051, EPIC: LAB5031, SOFT: CMP

Instructions

  • Blood should be obtained with as little venous stasis (i.e. tourniquet time) as possible. Fist clenching may result in false elevation of potassium and calcium.
  • Specimen should be kept tightly closed since CO2 will diffuse out if the tube is uncapped. This will cause an erroneously decreased value.  

Specimen Collection Criteria

Collect: One Gold-top SST tube. (Minimum Whole Blood: 4.0 mL)

Contact Laboratory for acceptability of other tube types. 
See Minimum Pediatric Specimen Requirements for Microtainer® collection.

Caution: Never refrigerate the collection tube prior to centrifugation. This may cause a falsely elevated potassium.

Physician Office/Drawsite Specimen Preparation

Let SST specimens clot 30-60 minutes then immediately centrifuge to separate serum from cells. Refrigerate (2-8°C or 36-46°F) the centrifuged SST tube within two hours of collection. (Min: 0.5 mL)

Preparation for Courier Transport

Transport: Centrifuged SST tube, refrigerated (2-8°C or 36-46°F). (Min: 0.5 mL)

Rejection Criteria

  • Moderate to grossly hemolyzed specimens.
  • Inadequately centrifuged Microtainers® or Gold-top tubes.
  • Red-top tubes with serum not separated from cells within two hours of collection.

Storage

Specimen Stability for Testing:

Centrifuged SST Tubes and Microtainers® with Separator Gel
Room Temperature (20-26°C or 68-78.8°F): 2-4 hours
Refrigerated (2-8°C or 36-46°F): 7 days*
Frozen (-20°C/-4°F or below): Unacceptable

Red-top Tubes and Microtainers® without Separator Gel
Room Temperature (20-26°C or 68-78.8°F): 2-4 hours
Refrigerated (2-8°C or 36-46°F): Unacceptable
Frozen (-20°C/-4°F or below): Unacceptable

Serum Specimens (Pour-Overs)
Room Temperature (20-26°C or 68-78.8°F): 2-4 hours
Refrigerated (2-8°C or 36-46°F): 7 days*
Frozen (-20°C/-4°F or below): 7 days

*Carbon Dioxide (CO2) has a stability of 3 days refrigerated. Total Bilirubin has a stability of 5 days at Grosse Pointe. CO2 may be falsely decreased for Comprehensive Metabolic Panel add-on requests on specimens greater than 72 hours past the time of collection.

Specimen Storage in Department Prior to Disposal:

Refrigerated (2-8°C or 36-46°F): 7 days

Laboratory

Farmington Hills Chemistry Laboratory.
Grosse Pointe Chemistry Laboratory.
Royal Oak Automated Chemistry Laboratory.
Troy Chemistry Laboratory.

Performed

Sunday - Saturday, 24 hours a day.
Results available within 4 hours.

Reference Range

See specific analytes for reference ranges.
This panel includes: AlbuminAlkaline PhosphataseALT (Alanine Aminotransferase)AST (Aspartate Aminotransferase)Bilirubin, TotalBlood Urea Nitrogen (BUN)CalciumCarbon Dioxide (CO2)ChlorideCreatinineGlucosePotassium, Sodium, and Total Protein.

Test Methodology

Varies.

Interpretation

See specific analytes for interpretation.
This panel includes: AlbuminAlkaline PhosphataseALT (Alanine Aminotransferase)AST (Aspartate Aminotransferase)Bilirubin, TotalBlood Urea Nitrogen (BUN)CalciumCarbon Dioxide (CO2)ChlorideCreatinineGlucosePotassiumSodium, and Total Protein.

Clinical Utility

This panel is used as a general indicator of metabolic control and to screen for a wide variety of conditions which affect that control.

CPT Code

80053.

Test Codes

Antrim #19051, EPIC: LAB5031, SOFT: CMP

Last Updated

01/14/2017

Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.

This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.