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

80164

Reference Range

11.0-307.0 ng/ml

Interfering Substance

The following substances were tested for interference with this methodology:
Hemoglobin, bilirubin, rheumatoid factor, paraprotein (IGM); In very rare cases, patient samples may contain a particle agglutinating substance which may produce low results with this assay.