Test Code CKISO Creatine Kinase (CK, CKMB) Isoenzyme, Serum
Performing Laboratory
ChristianaCare-Newark Campus
Methodology
CK: Rosalki
CKMB: Electrochemiluminescence
CKISO: Calculation
Specimen Requirements
Container/Tube: 4.5 mL Lithium Heparin (Mint Green top PST Gel) tube
Acceptable: 5.0 mL SST (Gold top) tube or 6.0 mL Serum (Red top) tube
Specimen: Full tube
Collection Instructions:
Note: Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, or financial number. Date and time of draw, collector’s initials, and type of specimen are also required.
Reference Values
CK
Males: 40-250 U/L
Females: 30-210 U/L
CKMB
Males: <6.7 ng/mL
Females: <3.8 ng/mL
CKMB INDEX: <4.3 ng/mL
Day(s) Test Set Up
Monday through Sunday
Routine Turnaround Time: 8 hours
STAT Turnaround Time: 1 hour