THEOPHYLLINE

Test Code

THEO

Alias/See Also

Aminophylline

CPT Codes
80198

Preferred Specimen

1 Red tube

Patient Preparation
Sampling time depends on age and dose administration. Steady state depends on peak values.

Minimum Volume

0.2 mL

Other Acceptable Specimens

1 Lavender tube (EDTA) or
1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of plasma or serum from red cells. Aliquot (transfer) serum or plasma into transfer tube. Refrigerate until tested.

Transport Container

Standard transport tube.

Transport Temperature

Refrigerate

Specimen Stability

2-8°C up to 7 days
Frozen up to 3 months

Methodology

EIA

Setup Schedule

M, T, W, Th, F, Sa, Sun

Report Available

Within 24 hours of receipt at the performing laboratory.

Reference Range

5-15 ug/mL

Clinical Significance

Used in the diagnosis and treatment of theophylline overdose and in monitoring levels of theophylline to ensure proper therapy

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)

Last Updated: January 17, 2024

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.