91340 Thyroid Stimulating Immunoglobulin

Specimen:

Collect:

One 7.5 mL SST

Submit:

1 mL (Min:0.7 mL) Serum. Submit Frozen. Submit in a Standard Transport Tube.

Special Handling:

Separate from cells ASAP

Stability:

Ambient: 2 Hour(s); Refrigerated: 6 Day(s); Frozen: 3 Month(s); Incubated: Unacceptable

Methodology:

Bioassay; Chemiluminescence

Performed:

Monday, Tuesday, Thursday, Saturday

Reported:

3-6 Day(s)

CPT Codes:

84445 - Thyroid Stimulating Immunoglobulins

Interpretive Data:

General Reference Range : <130 %
An elevated TSH above 10 mU/L may produce a weakly positive result. Positive results greater than 130% are consistant with Graves disease.