Creatine Kinase (CK), Total : 374

Test Code

CKAU or 374

Alias/See Also

CPK

CPT Codes
82550

Transport Container

Preferred Specimen
1 mL serum

Alternative Specimens
Plasma collected in: Sodium heparin (green-top) or lithium heparin (green-top) tube

Minimum Volume
0.5 mL

Transport Temperature

Room temperature.

Specimen Stability

Room temperature: 72 hours; Refrigerated: 7 days; Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis, Anticoagulants other than heparin

Methodology
Spectrophotometry

Setup Schedule

Sunday - Saturday

Report Available

1 day

Reference Range

Age Male (U/L) Female (U/L)
0 to <4 days 94-810 94-810
4 days to <1 mo 63-383 63-383
1 mo to <1 yr 38-331 38-331
1 yr to <5 yr 36-323 33-308
5 yr to <7 yr 38-369 30-304
7 yr to <10 yr 36-337 33-295
10 yr to <13 yr 33-333 28-280
13 yr to <19 yr 34-344 22-246
19 yr to <50 yr 26-366 20-239
50 yr to <60 yr 23-325 21-240
60 yr to <70 yr 22-308 20-243
70 yr to <80 yr 19-278 18-225
80+ yr 17-247 16-215

Clinical Significance

Measurements of Creatine Kinase are used in the diagnosis and treatment of myocardial infarction and muscle disease. Elevated results may be due to myocarditis, myocardial infarction, muscular dystrophy, muscle trauma or excessive exercise. Elevated CK-MB levels are associated with myocardial cell death and damage due to acute myocardial infarction.

Performing Laboratory
med fusion

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.