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Creatine Kinase (CK) MB Isoenzyme, Plasma or Serum
Test Code150
CPT Codes
82550-CK, total; 82553-CK-MB fraction only (if appropriate)
Includes
Includes CK, total; CK-MB; and CK-MB index.
CK-MB will not be performed if the CK, total is <20 U/L.
CK-MB will not be performed if the CK, total is <20 U/L.
Preferred Specimen
Submit only 1 of the following specimens:
Plasma
Container/Tube: Green-top (heparin) tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of plasma
Collection Instructions: Separate plasma from cells immediately.
Note: 1. Indicate plasma. 2. Label specimen appropriately (plasma).
Serum
Container/Tube: Serum gel tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of serum
Collection Instructions: Separate plasma from cells immediately.
Note: 1. Indicate serum. 2. Label specimen appropriately (serum).
Plasma
Container/Tube: Green-top (heparin) tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of plasma
Collection Instructions: Separate plasma from cells immediately.
Note: 1. Indicate plasma. 2. Label specimen appropriately (plasma).
Serum
Container/Tube: Serum gel tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of serum
Collection Instructions: Separate plasma from cells immediately.
Note: 1. Indicate serum. 2. Label specimen appropriately (serum).
Transport Temperature
Refrigerate
Methodology
Enzyme Immunoassay (EIA)
Setup Schedule
Monday through Sunday
Reference Range
CK TOTAL
Males:
1-30 days: 20-600 U/L
1-2 months: 25-300 U/L
>=3 months: 35-232 U/L
Females:
1-30 days: 20-600 U/L
1-2 months: 25-300 U/L
>=3 months: 21-215 U/L
Note: Strenuous exercise or intramuscular injections may cause transient elevation of CK.
CK-MB <=5.0 ng/mL
CK INDEX <=4.0
Males:
1-30 days: 20-600 U/L
1-2 months: 25-300 U/L
>=3 months: 35-232 U/L
Females:
1-30 days: 20-600 U/L
1-2 months: 25-300 U/L
>=3 months: 21-215 U/L
Note: Strenuous exercise or intramuscular injections may cause transient elevation of CK.
CK-MB <=5.0 ng/mL
CK INDEX <=4.0
Clinical Significance
Useful for evaluation of patients with possible myocardial damage, muscular damage, or brain injuries.
Performed By
CoxHealth