Ordering Recommendation

Troponin I (0090613) or Troponin T (cTnT) 5th Generation (3001831) are the recommended tests for diagnosis and management of acute coronary syndrome. For calculation of CK relative percent, see Creatine Kinase, MB and Relative Percent (3002030).

Mnemonic
CK MB
Methodology

Chemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum Separator Tube (SST), Green (Sodium or Lithium Heparin), or Lavender (K2 or K3 EDTA).

Specimen Preparation

Allow specimen to clot for 15-20 minutes at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Specimens containing particulate material. Grossly hemolyzed specimens.

Remarks
Stability

After separation from cells: Ambient: 12 hours; Refrigerated: 72 hours; Frozen: 3 months (No freeze/thaw cycles)

Reference Interval
Test Number
Components
Reference Interval
0080481 Creatine Kinase, Isoenzyme MB Female 0 - 4.3 ng/mL
Male 0 - 7.7 ng/mL

Interpretive Data



Compliance Category

FDA

Note

Creatine Kinase, MB is quite labile. For calculation of relative percent, order Creatine Kinase, MB and Relative Percent (ARUP test code 3002030).

Hotline History
N/A
CPT Codes

82553

Components
Component Test Code* Component Chart Name LOINC
0080481 Creatine Kinase, Isoenzyme MB 13969-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • CK MB
  • CKMB
  • CPK MB
Creatine Kinase, MB