Theophylline
Special Requirement
1 red top tube
Methodology
Turbidimetric inhibition immunoassay
Special Instructions
Do not use SST tube for specimen collection, drug binding to the gel may result in falsely lowered drug levels. If specimen is collected to SST tube, spin after 30 mins and separate serum.
Collection Days
Monday-Friday
Report Available
Daily
CPT Code
80198
Reference Range
10-20 ug/ml
Interfering Substance
Anti coagulated blood interferes with the assay.