Test Code CAF Caffeine, Serum
Performing Laboratory
ChristianaCare-Newark Campus
Methodology
Enzyme Immunoassay (EIA)
Specimen Requirements
Container/Tube: 3.5-mL red-top (gel) tube
Specimen: Full tube
Collection Instructions: For pediatrics, draw blood in a 0.5-mL green-top MICROTAINER®.
Note: Label tube(s) 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
5-25 mg/L
Critical value (automatic call-back): >50 mg/L
Day(s) Test Set Up
Monday through Sunday
Routine Turnaround Time: 8 hours
STAT Turnaround Time: 1 hour