Special Requirement

1 red top tube

Methodology

Turbidimetric inhibition immunoassay

Special Instructions

Draw sample 1 hour after administration of drug. 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

80202

Reference Range

20-40 ug/ml

Interfering Substance

The following substances were tested for interference with this methodology:
Hemoglobin, bilirubin, rheumatoid factor, paraprotein (IGM)