Home
HelpTest Code CAFFM Caffeine, Serum
Additional Codes
| Mayo | CAFF |
| Epic ID | LAB706 |
Specimen Type
SerumSpecimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and the serum aliquoted into a plastic vial within 2 hours of collection.
Specimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 28 days |
| Ambient | 72 hours | |
| Refrigerated | 72 hours |
UPH Waterloo Region Lab Test Catalog
Note:
Transport frozen.
Reject Due To
| Gross hemolysis | Reject |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Method Name
Enzyme Multiplied Immunoassay Technique (EMIT)
Useful For
Monitoring caffeine therapy in neonates
Assessing caffeine toxicity in neonates
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysReference Values
Therapeutic: 8.0-20.0 mcg/mL
Critical value: ≥30.0 mcg/mL
CPT Code Information
80155