TSI (THYROID STIMULATING GLOBULIN)

Also known as: Thyroid stimulating globulin (TSI)

What you need to know about study TSI (THYROID STIMULATING GLOBULIN)

Sample type Serum
Delivery time 8 business days
Do I need to fast? No

What is this study and what is it for?

Second-tier tests for autoimmune thyroid disease, including: -Differential diagnosis of thyrotoxicosis etiology in patients with ambiguous and/or contraindicated clinical findings (e.g., pregnant or lactating) or indeterminate thyroid radioisotope scans. -Diagnosis of clinically suspected Graves' disease (e.g., extrathyroidal manifestations of GD include endocrine exophthalmos, pretibial myxedema, thyroid acropachy) but normal thyroid function tests. -Determining the risk of neonatal thyrotoxicosis in a fetus of a pregnant woman with active or past GD. -Differential diagnosis of gestational thyrotoxicosis versus first-trimester manifestation or recurrence of Graves' disease. -Evaluation of the risk of GD relapse after treatment with antithyroid drugs. A combination of TSI/thyroid-stimulating immunoglobulin (TSI), serum, and THYRO/thyrotropin receptor antibody, serum is useful as an adjunct in the diagnosis of unusual cases of hypothyroidism (e.g., Hashitoxicosis).

What type of sample is needed?

Serum

Preparation / Instructions

No special indications

Delivery time

8 business days

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