Quantitative Thyroglobulin without Thyroglobulin Antibodies Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	Coming soon	$22.49
Results in	—	~5 business days
Sample type	—	Blood Serum
Require fasting	—	No

About the test

Thyroglobulin (TG) is a secretory product only of the thyroid gland. The major clinical use of serum TG measurement is to monitor, but not to diagnose, patients with well-differentiated thyroid cancers.

The measurement of thyroglobulin, after thyroidectomy and ablation of the thyroid gland, is useful to determine metastasis. Deficient TG synthesis is observed in infants with goitrous hypothyroidism.

With immunometric assays (sandwich assays), TGAB interference typically produces inappropriately low TG results, most likely caused by endogenous TG immune complexes that block one or more of the reagent Ab from binding endogenous TG.

Included biomarkers & Reference ranges

Biomarker	Reference range
Thyroglobulin (Tg) Thyroglobulin, a protein made by the thyroid gland. Used mainly to monitor for thyroid cancer recurrence after treatment.	2.8–40.9 ng/mL

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

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