Test Code CK Creatine Kinase Total

Additional Codes

LAB62

Collection Method

Venous collection

Minimum Volume

0.5ml

Container

Lt Green / Plasma Separator / Lithium Heparin

Acceptable Specimens

Serum:

Gold Top SST
Red Top

Plasma:

Light Geen Top (lithium heparin)

Reference or Target Ranges

Age	Female
< 21 days	0-600
3 weeks - 3 months	0-440
3 months - 5 years	20-215
6-7 years	134-391
8-14 years	91-391
15-17 years	53-269
> 18 years	38-176

Age	Male
< 21 days	0-600
3 weeks - 3 months	0-440
3 months - 5 years	35-230
6-11 years	150-499
12-17 years	94-499
> 18 years	44-196

Reportable Units

U/L

Critical Value

Not defined for this assay

Reasons for Rejection

Hemolysis Threshold	100 mg/dL
Icterus Threshold	60 mg/dL
Lipemia Threshold	1000 mg/dL
Other	QNS, contaminated, improperly labled, improper specimen type

Specimen Stability

Ambient	4 hours
Refrigerated (4°C to 8°C)	8 hours
Frozen(-40°C to 0°C)	4 weeks

Performance Information

Days and Time Performed	24/7
Expected Turn Around Time	Stat: 1 hour Routine: 4 hours
Stat Availabilty	Yes
Performing Bench	CPH Chemistry
Methodology/Method Description	Roche Cobas

CPT Codes

82550

Last review/edit date

2025