Test Code THEO THEOPHYLLINE
Performing Laboratory
Helen Keller Laboratory
Specimen Container:
Green Lithium Heparin Tube
Specimen Requirements
Preferred: Lithium heparin (light green-top)
Acceptable: Serum
Minimum volume: 1 mL (pediatric: 0.2 mL) of plasma or serum.
Specimen Stability Information
3 days refrigerated
Reference Intervals:
10 – 20.0 ug/dL
Day(s) Testing is Performed
Monday-Sunday
CPT Coding:
80198