Chemiluminescent Immunoassay (CLIA)
Evaluation of patients with possible myocardial infarction. Following myocardial infarction, CK-MB levels generally start to rise after 4-6 hours, peak around 20 hours, and return to normal by 48 hours. Thrombolytic therapy can shorten these times considerably.
MB Isoenzyme: 0 - 4.9 ng/mL (if total CK <500 IU/L) or 0.0 - 1.0% (if total CK >=500 IU/L).
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
- CKMB %
- CK Total and MB Isoenzyme
- Creatine Kinase Fractionation
- Creatine Phosphokinase Isoenzyme
- Total CPK
- CK MB ISOZYME
- CREATINE PHOSPHOKINASE
- CK Isoenzymes, MB
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Collect specimen in a light green top plasma separator tube. Centrifuge, aliquot plasma into a plastic vial and refrigerate.
The test includes a total CK determination. CK-MB will not be run if total CK < 80 IU/L. If total CK is > or = 80 IU/L and < 500 IU/L, the CKMB will be performed (reference range 0 - 4.9 ng/mL). If total CK is > or = 500 IU/L, the CKMB (no reference range) and CKMB% (reference range 0.0 - 1.0%) will be performed.