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Test Code THEO Theophylline Level

Specimen Type

Blood

Container

Red top

Preferred Volume

4 mL

Availability

24/7

Turnaround Time

3 hours

STAT Availability

Available

Test Usage

Monitoring of theophylline concentrations in serum is useful, since rates of individual theophylline clearance can vary and severe toxicity has been observed without prior occurrence of minor side effects.

Test Methodology

kinetic interaction of microparticles in a solution (KIMS)

CPT Code

80198

Test Includes

quantitative determination of theophylline in serum

STAT Turnaround Time

1 hour

Reference Range

Adults: therapeutic: 10 – 20 µg/mL

Critical Results

>25 µg/mL

Minimum Volume

2 mL

Fee Code

43622