Test Overview
Test Methodology

Kinetic Immunoassay (KIMS)

Test Usage

Monitor therapeutic drug level, evaluate theophylline toxicity

Reference Range *

Therapeutic: 10-20 mcg/mL. Toxic > 25 mcg/mL. Neonatal apnea: 6-12 mcg/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

2 hours

Soft Order Code
THEO
MiChart Code
Theophylline Level
Synonyms
  • Aminophylline
  • Aminophylline, Blood
  • THEO
  • THEOPHYLLINE
  • THEOPHYLLINE LEVEL
Laboratory
Chemical Pathology
Section
Automation
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect blood in a red top tube. Centrifuge, aliquot serum into a plastic vial, and refrigerate.

Alternate Specimen
SST, green top (heparin) or lavender (EDTA) top
Red Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
80198
Fee Code
33290
LOINC
4049-3
Resources