CK Isoenzymes
Test Mnemonic
CKISO
CPT Codes
- 82550 - QTY (1)
- 82552 - QTY (1)
Aliases
- Creatine Kinase Isoenzymes
Includes
- % CKMB
- % CKMM
- % CKBB
- Creatine Kinase, Total
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Frozen | Transfer 1 mL serum to standard aliquot tube and freeze. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Frozen | Transfer 1 mL serum to standard aliquot tube and freeze. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | After separation from cells: 1 month (Avoid repeated freeze/thaw cycles) |
| Refrigerated | After separation from cells: 1 week |
| Ambient | After separation from cells: Unacceptable |
Days Performed
Sun - Sat
Turnaround Time
3 - 4 days
Methodology
| Name | Description |
|---|---|
| Electrophoresis | |
| Enzymatic |
Reference Range
| % CKMB | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 0 - 4 | % | |||
| % CKMM | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 96 - 100 | % | |||
| Creatine Kinase | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Male | Days | 30 Days | Normal | 108 - 564 | U/L | Male | 6 Months | 35 Months | Normal | 50 - 272 | U/L | Male | 3 Years | 6 Years | Normal | 56 - 281 | U/L | Male | 7 Years | 17 Years | Normal | 60 - 393 | U/L | Male: 31 Days to 5 Months: 72 - 367 U/L | Male: 18 Years and older: 39 - 308 U/L | Female: 31 Days to 5 Months: 72 - 367 U/L | Female: 18 Years and older: 26 - 192 U/L | Female | Days | 30 Days | Normal | 108 - 564 | U/L | Female | 6 Months | 35 Months | Normal | 38 - 261 | U/L | Female | 3 Years | 6 Years | Normal | 40 - 222 | U/L | Female | 7 Years | 17 Years | Normal | 46 - 250 | U/L |
Special Info
This test will detect CK macroenzymes. Specimens preserved in citrate, EDTA, fluoride, heparin, or iodoacetate are unacceptable. Grossly hemolyzed specimens will be rejected. This test is New York DOH approved.
Clinical Info
Aids in determining the etiology of elevated total creatine kinase.