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Test Code CPK Creatine Kinase (CK), Plasma or Serum

Additional Codes

LAB62

Methodology

Useful for the diagnosis of MI and cerebrovascular accidents. Elevated levels of CK can also be found in viral myositis, polymyositis, hypothyroidism, after strenuous exercise, and after recent surgery. Used as a diagnostic test in the workup of suspected  muscular dystrophy, especially the Duchenne type.

Performing Laboratory

St. Mary's Regional Medical Center-Chemistry

 

CPT: 82550

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Container/Tube:  light green-top (lithium heparin) tube

Specimen: 1 mL of heparinized plasma

Transport Temperature: Ambient

Collection Instructions: Grossly hemolyzed specimen may interfere with this method.

Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).

 

Serum

Container/Tube: Plain, red-top tube or serum gel tube

Specimen: 1 mL of serum

Transport Temperature: Ambient

Collection Instructions: Grossly hemolyzed specimen may interfere with this method.

Note: 1. Indicate serum.
2. Label specimen appropriately (serum).

Reference Values

Males

0-3 months: 29-303 IU/L

3-12 months: 25-172 IU/L

1-2 years: 28-162 IU/L

2-10 years: 31-152 IU/L

11-14 years: 31-152 IU/L

15-18 years: 34-147 IU/L

>19 years: 39-308 IU/L

Females

0-3 months: 43-474 IU/L

3-12 months: 27-242 IU/L

1-2 years: 25-177 IU/L

2-10 years: 25-177 IU/L

11-14 years: 31-172 IU/L

15-18 years: 28-142 IU/L

>19 years: 26-192 IU/L

Call criteria (automatic call-back): >5,000 IU/L

Day(s) Test Set Up

Monday through Sunday

Available STAT