TSH Receptor Antibodies Test

TSH Receptor Antibodies Test

Category
Thyroid
Sample
Blood sample taken from a vein in your arm
Reports () Terms & Conditions Report time varies with time of sample collection.
In 4 days
Fasting
No Fasting
Age
5+ Years

What Is This Test?

Detects antibodies against the TSH receptor (TRAb) that can over-stimulate the thyroid.

Why this test is performed?

Confirms Graves' disease as the cause of an overactive thyroid, helps predict relapse, and is checked in pregnant women with Graves' disease because it can affect the baby's thyroid.

Who should take this test?

Tiredness, weight gain or loss, hair fall, feeling cold or hot, irregular periods, anxiety/palpitations, infertility or pregnancy planning.

Test Preparation

No fasting needed.

Medical disclaimer · for information only, not medical advice

This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.

In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.

Read our Editorial Policy and Medical Review Process.

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Frequently asked questions

TSI is a type of TRAb that specifically stimulates the thyroid; both are used to diagnose Graves' disease.

No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.

Blood sample taken from a vein in your arm.

Usually within 2–3 days after the sample reaches the lab. You will receive the report online.

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