THEOPHYLLINE | |
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Test Code: 140 | Specimen Collection: Serum |
Component: Theophylline | Method: IA |
Collection Notes: Collect as a trough just before the next dose. Plasma should be physically separated from cells as soon as possible with a maximum limit of 2 hours from the time of collection. Centrifuge and physically separate the plasma using a plastic transfer pipette into a separate plastic transfer tube. | |
Clinical Utility: Theophylline levels are useful for monitoring optimal therapeutic levels and for assessing toxicity. | |
CPT Code: 80198 | Testing Location: Sent to reference lab |
SPECIMEN/STABILITY TYPETemperature:Serum (1 mL) Red top Refrigerated 7 Days Frozen 3 Months Plasma (1 mL), Li heparin or EDTA Refrigerated 7 Days Frozen 3 Months |