Days Set Up
Daily, 24 hours
Analytic Time

2 hours

MiChart Code
CK (Creatine Kinase)
Soft Order Code

Test Updated:


CK Total
Creatine Phosphokinase

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Colorimetric Rate

Test Usage

Evaluation and monitoring of disorders of skeletal and cardiac muscle. Creatine Kinase only is performed. Order CK, Total and MB Isoenzymes (TCK) if reflex testing is desired for CKMB.

Reference Range

Male: 38 - 240 IU/L; Female: 26 - 180 IU/L

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Collect specimen in a green top tube.

Collection Offsite

Collect specimen in a green top tube. Centrifuge, aliquot plasma into a plastic vial and refrigerate.

Normal Volume
0.5 mL plasma
Minimum Volume
0.25 mL plasma

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.