Creatine Kinase Isoenzymes (CK Isoenzymes) with Total CK [4451]

Message
For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.


Test Code
CKISO


Alias/See Also
4451;
CK Isoenzyme Panel;
CPK Fractionated;
CPK Isoenzymes


CPT Codes
82550, 82552

Includes
CK-BB, CK-MB, CK-MM and Creatine Kinase (CK), Total


Preferred Specimen
2 mL Frozen Serum


Minimum Volume
1 mL


Instructions
If CK and CK Isoenzymes are ordered together, specimen must be submitted frozen.


Transport Container
Plastic screw-cap vial


Transport Temperature
Frozen


Specimen Stability
Room temperature: Unacceptable Refrigerated: 48 hours Frozen: 14 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Received thawed


Methodology
Electrophoresis • Enzymatic

Setup Schedule
Set up: Sun-Fri evening; Report available: 2-3 days


Reference Range
See Laboratory Report


Clinical Significance
Test is 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.


Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



Last Updated: November 29, 2021


The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.