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
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
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
80198
Fee Code
33290
LOINC
4049-3
NY State Approved
No