TSIMM
Thyroid Stimulating Immunoglobulin
EPIC Test Procedure Code: LAB3490
Synonyms:
Thyroid Stimulating Inhibitory Immunoglobulin
TSI
Performing Lab:
Referral Laboratory
Container Type:
Plain red top (Preferred), serum gel
Specimen Type:
Serum (preferred)
Preferred Volume:
0.5 mL
Minimum Volume:
0.3 mL
Store and Transport:
Frozen
Stability:
Room temperature - 24 days
Refrigerated - 7 days
Frozen - 60 days
Unacceptable Condition:
Gross hemolysis
CPT Codes:
84445 - Thyroid Stimulating Immunoglobulin (EAP 30021209)
Test Schedule:
Monday through Friday
Turnaround Time:
3-7 days
Method:
Recombinant Bioassay
Reference Ranges:
Please refer to the performing lab report for applicable reference ranges
Clinical Significance:
This test is used for second-order testing for autoimmune thyroid disease.
For suspected cases of autoimmune hypothyroidism, the first-order testing is TPO / Thyroperoxidase Antibodies, Serum.
For suspected cases of autoimmune thyroid disease, first-order testing includes TPO and THYRO / Thyrotropin Receptor
Antibody, Serum.
For suspected cases of autoimmune hypothyroidism, the first-order testing is TPO / Thyroperoxidase Antibodies, Serum.
For suspected cases of autoimmune thyroid disease, first-order testing includes TPO and THYRO / Thyrotropin Receptor
Antibody, Serum.