TFT Thyroid Function Test

The Thyroid Function Test (TFT) is a blood test used to evaluate how well the thyroid gland is functioning. The thyroid gland produces hormones that regulate metabolism, energy levels, body temperature, and several other important body functions.

This test helps healthcare professionals investigate thyroid disorders, including hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid).

What Does This Test Check?

• Evaluates thyroid hormone levels in the blood.

• Helps assess thyroid gland function.

• Supports the investigation of hypothyroidism.

• Helps identify possible hyperthyroidism.

• May assist in monitoring thyroid conditions and treatment response.

• Commonly includes TSH, T3, and T4 measurements, depending on the laboratory panel.

Sample Requirements

• Sample Type: Clotted Blood or Serum

• Required Quantity: 2–3 ml

• Department: Clinical Chemistry / Hormone Testing

Patient Preparation

• Fasting is generally not required unless instructed by your doctor or laboratory.

• Inform your healthcare provider about thyroid medications and supplements, especially biotin.

• Follow your doctor's instructions regarding medication timing before sample collection.

• Follow any specific sample collection instructions provided by the laboratory.

Important Information

TFT results should be interpreted together, as TSH, T3, and T4 levels provide different information about thyroid function. Abnormal results may be associated with thyroid disorders, medications, pregnancy, or other health conditions.

The exact components of a TFT panel may vary between laboratories. Confirm whether the package includes TSH, Total T3, Total T4, or Free T3 and Free T4 before booking.

Reporting Time: To be confirmed by the laboratory.

Please confirm test availability and sample collection requirements with the laboratory before booking.