Geisinger Medical Laboratories Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB2023         Geisinger Epic ID: 41801

Specimen type:
Plasma or serum
Preferred collection container:
Specimen required:
2 mL serum or plasma; minimum 0.5 mL.

Specimen processing instructions:
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. 
Transport temperature:
Frozen (preferred) or refrigerated.
Specimen stability:
Room temperature: 5 hours. Refrigerated: 24 hours. Frozen: 3 months.
Rejection criteria:
Stability limits exceeded.

Reference interval:
Female: 0-4.3 ng/mL
Male: 0-7.7 ng/mL
Additional information:
Significant interference with the procedure may occur in patients with antibodies induced during treatment with mouse monoclonal antibodies.
CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Electrochemiluminescence Immunoassay
MB fraction, CK, CK-MB
Clinical significance:
CK-MB is used for evaluation of acute myocardial infarction (AMI) due to its release from myocytes during necrosis of heart muscle. Lesser amounts of CKMB are found in skeletal muscle, and CKMB elevations may be observed after crush injuries.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 12/14/2022

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Megan Woodruff / Jared Shepherd
Frequency: Daily, all shifts
Performed STAT? Yes

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Danielle Mostowski    
Frequency: Daily, all shifts    
Performed STAT? Yes

Geisinger Community Medical Center

Performing laboratory: Chemistry
Technical Lead: Ann Mack, Deborah Dempsey  
Frequency: Daily, all shifts    
Performed STAT? Yes
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