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Thyroid Function Tests (TFTs)


Thyroid Function Tests –  Description

Thyroid function tests are essential diagnostic tools used to assess the function of the thyroid gland. These tests are crucial in evaluating conditions like hyperthyroidism and hypothyroidism, as well as monitoring the effectiveness of treatment. The primary blood tests used in thyroid function testing include:

  • TSH Test: Measures thyroid-stimulating hormone levels.
  • T4 Test: Measures thyroxine levels.
  • T3 Test: Measures triiodothyronine levels.
  • Thyroid Antibody Tests: Helps diagnose autoimmune thyroid disorders.

Indications of the TFTs

Thyroid function tests play a crucial role in diagnosing thyroid diseases such as hyperthyroidism, hypothyroidism, Graves’ disease, Hashimoto’s disease, thyroid nodules, and thyroid cancer. These tests are vital for understanding how well the thyroid gland is functioning and are typically the first step in diagnosing thyroid-related conditions.

Patient Preparation/Instructions

  • Some medications may interfere with thyroid function tests, so inform your healthcare provider about any medications you are taking.
  • Fasting may be required for certain tests, so follow any specific instructions provided by your healthcare provider.

Typical Reference Values for TFTs

  • TSH: 0.4 to 4.0 mU/L
  • T4: 4.5 to 11.2 mcg/dL
  • T3: 100 to 200 ng/dL

Turnaround Time

The turnaround time for thyroid function tests is typically  3-6 hours.

Order This Test

To order the Thyroid Function Tests, simply click the ‘Order Test’ button and add it to your cart for convenient online booking or call us on 0711 902565


Learn more:   Thyroid tests in the laboratory


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