Search our extensive Laboratory Test Directory to find test codes, ordering recommendations, specimen stability information, Test Fact Sheets, and more.
Recommendations when to order or not order the test. May include related or preferred tests.
Aid in determining the etiology of elevated total creatine kinase. May aid in identifying the presence of macro creatine kinase. Troponin testing is recommended for diagnosis and management of acute coronary syndrome; refer to Troponin T (cTnT) 5th Generation (3001831).
New York DOH Approval Status
Indicates whether a test has been approved by the New York State Department of Health.
This test is New York state approved.
Specimen Required
Patient PreparationInstructions patient must follow before/during specimen collection.
CollectSpecimen type to collect. May include collection media, tubes, kits, etc.
Serum Separator Tube (SST) or Plain Red.
Specimen PreparationInstructions for specimen prep before/after collection and prior to transport.
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport TemperaturePreferred temperatures for storage prior to and during shipping to ARUP. See Stability for additional info.
Frozen.
Unacceptable ConditionsCommon conditions under which a specimen will be rejected.
Specimens preserved in citrate, EDTA, fluoride, heparin, or iodoacetate. Grossly hemolyzed specimens.
RemarksAdditional specimen collection, transport, or test submission information.
StabilityAcceptable times/temperatures for specimens. Times include storage and transport time to ARUP.
After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 1 month (avoid repeated freeze/thaw cycles)
Methodology
Process(es) used to perform the test.
Quantitative Enzymatic Assay/Electrophoresis
Performed
Days of the week the test is performed.
Sun-Sat
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
2-3 days
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Test Number
Components
Reference Interval
CK-MM
96-100%
CK-MB
0-4%
CK-BB
0%
CK-Macro Type I
0%
CK-Macro Type II
0%
CK Total
Age
Male (U/L)
Female (U/L)
0-30 days
108-564
108-564
31 days-5 months
72-367
72-367
6-35 months
50-272
38-261
3-6 years
56-281
40-222
7-17 years
60-393
46-250
18 years and older
39-308
26-192
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
Compliance Category
FDA
Note
Additional information related to the test.
This test will detect CK macroenzymes.
Hotline History
N/A
CPT Codes
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* 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.
Connect Sign In
