Theophylline

Test/Investigation

Theophylline

Site(s) or Laboratory offering Test/Investigation

NNUH

Units

mg/L

Comments/Precautions

Assayed to check compliance and therapeutic levels.

Sample type

Serum

Turnaround times (TAT) Urgent/Routine/GP or OPD

1 hour / 4 hour / by 8am next day

Reference intervals (adult unless stated)

10 – 20 mg/L