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- Ordering Info
To view specimen requirements and codes please select your laboratory:
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Creatine Kinase (CK), Total
1 mL serum
Plasma collected in a sodium heparin (green-top) or lithium heparin (green-top) tube
If CK and CK Isoenzymes are ordered together, specimen must be submitted frozen
Serum Separator Tube (SST®)
Serum and plasma
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 28 days
Hemolysis • Anticoagulants other than heparin
|Quest Diagnostics - Southwest Region|
|Age||Male (U/L)||Female (U/L)|
|≤3 Days (newborn)||<1578||<1578|
Test for myocardial infarction and skeletal muscle damage. Elevated results may be due to: myocarditis, myocardial infarction (heart attack), muscular dystrophy, muscle trauma or excessive exercise.
The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.NOTE: The codes listed in the table below are not orderable Test Codes.
|Result Name||LOINC Code||Component Name|
|25014100||CREATINE KINASE, TOTAL||2157-6||Creatine kinase|
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.
* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.