Caffeine Level
Order Name
CAFFEINE
Test Number: 4001300
Revision Date 12/12/2022
Test Number: 4001300
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Caffeine Level
|
Liquid Chromatography/Tandem Mass Spectrometry |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.3 mL ) | Serum | Clot Activator (Red Top, No-Gel) | Room Temperature |
| Alternate 1 | 1 mL (0.3 mL ) | Plasma | Lithium Heparin (Dark Green Top / No-Gel) | Room Temperature |
| Alternate 2 | 1 mL (0.3 mL ) | Plasma | Sodium Heparin (Green Top, No-Gel) | Room Temperature |
| Instructions | Notes: 0.3 mL (Note: This volume Does NOT allow for repeat testing). Specimen Type: Red-top tube, lavender-top (EDTA) tube OR green-top (heparin) tube. DO NOT USE A GEL-BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant. Specimen Storage: Room Temperature Specimen Collection: Transfer separated serum or plasma to a plastic transport tube. Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 2 - 3 days working day. |
| Performing Labcorp Test Code | 071258 |
| Notes | Reference Lab: Saint Francis Hospital Laboratory |
| CPT Code(s) | 80155 |
| Lab Section | Reference Lab |