What is this test? Thyroid function tests is a collective term for blood tests used to check the function of the thyroid. TFTs may be requested if a patient is thought to suffer from hyperthyroidism or hypothyroidism, or to monitor the effectiveness of either thyroid-suppression or hormone replacement therapy.
Sample required: Blood from a vein.
Tests done under Thyroid profile include:
Thyroid profile (TSH, Total T3, Total T4)
TSH
Total T3
Total T4
Free T3
Free T4
Client preparation: No specific client preparation protocol required. Inform your vaccinator if you are on any medications or have any underlying medical conditions or allergies before undergoing this test.
Turn-around time (How long does it take?): 2 hours offsite in a lab.
Basis of the Test: Thyroid tests check how well your thyroid is working. They are also used to diagnose and help find the cause of thyroid diseases such as hyperthyroidism and hypothyroidism.
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