Laboratory Services

Theophylline

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Updated Test Information:

Test Description
Theophylline
Synonym(s)
Aminophylline Elixophylin Elixophyllin
Test ID
THEO
Specimen Type
Serum
Alternate Specimen Type
Red, Na-heparin, Li‑heparin, Ammonium heparin, Na-citrate, K2‑EDTA and K3‑EDTA plasma
Specimen Requirements
Red Top
Aliquot Tube
Specimen Collection / Processing Instructions
Red Top - Transfer separated serum or plasma to an aliquot tube
Stability
7 days at 2‑8 °C
2 months at ‑20 °C (± 5 °C) Freeze only once
Methodology
Enzyme immunoassay
Estimated TAT
0-2 days
Testing Schedule
Monday-Saturday
CPT Code(s)
80198
Minimum Sample Volume
1 mL
Pediatric Min. Volume (if applicable)
500 uL
Reference Range
10-20 ug/mL
Performing Lab
Incyte Diagnostics
LOINC Code(s)
4049-3