Theophylline
Order Name
THEOPHYLLI
Test Number: 4005050
Revision Date 06/04/2021
Test Number: 4005050
Revision Date 06/04/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Theophylline
|
Enzyme Immunoassay | 4049-3 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated |
| Alternate 1 | 1 mL (0.5) | Serum | Clot Activator SST | Refrigerated |
| Instructions | Peak: Draw 2-4 hours after oral dose. Stability: Ambient 8 hours, Refrigerated 3 months, Frozen 3 months. |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Daily |
| Expected TAT | 1-2 days |
| Clinical Use | Useful for optimizing drug dosage and assessing toxicity. |
| CPT Code(s) | 80198 |
| Lab Section | Chemistry |