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HelpOrderable Name CAFF Caffeine, Serum
Additional Codes
CNE Order Code: Caffeine
Specimen 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.
Useful For
Monitoring caffeine therapy in neonates
Assessing caffeine toxicity in neonates
Method Name
Enzyme Multiplied Immunoassay Technique (EMIT)
Specimen Type
SerumSpecimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen (preferred) | 28 days | |
| Ambient | 72 hours | ||
| Refrigerated | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Therapeutic: 8.0-20.0 mcg/mL
Critical value: ≥30.0 mcg/mL
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysCPT Code Information
80155
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.