Caffeine, Serum or Plasma
Also known as: Cafcit®, Energets, No Doz® Maximum Strength, Vivarin®
Use
Monitor caffeine concentration in newborns receiving theophylline or caffeine.
Special Instructions
The test should be conducted using a red-top (no additive) tube or green-top (heparin) tube. Gel-barrier tubes are not recommended. After collection, separated serum or plasma should be transferred to a plastic transport tube. Ensure proper storage conditions for accurate results.
Limitations
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration. Results are dependent on the method used, and variations in the method could affect results. Testing schedules may vary, so additional time may be needed for confirmatory tests.
Methodology
Immunoassay (IA)
Biomarkers
LOINC Codes
- 3422-3
- 3422-3
Result Turnaround Time
2-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.2 mL
Container
Red-top (no additive) tube
Collection Instructions
Transfer separated serum to a plastic transport tube.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |