Thyroid Function Test (TFT)
Measures TSH, T3, and T4 to assess thyroid function—the standard test for fatigue, weight changes, and metabolism issues.
Test Information
Reports In
Same day (5-6 hours)
Parameters
3
Requisites
Blood Sample
Sample Type
Blood
Measures
TSH (thyroid-stimulating hormone), T3 (triiodothyronine—active hormone), and T4 (thyroxine)—the key hormones that regulate metabolism, energy, and body temperature.
Identifies
Hypothyroidism (underactive thyroid—high TSH, low T3/T4), hyperthyroidism (overactive—low TSH, high T3/T4), and helps fine-tune thyroid medication dosage.
What is the Thyroid Function Test Test?
The Thyroid Function Test (TFT) measures TSH, Free T3, and Free T4 — the three hormones that control your metabolism, energy levels, weight, and mood. Thyroid disorders are extremely common in India, especially among women. This test provides a complete thyroid assessment in one go.
Why Should You Take This Test?
Hypothyroidism is extremely common in India, especially in women. Symptoms—fatigue, weight gain, hair loss—are often ignored. TSH is the best screening test. Simple medication (levothyroxine) can dramatically improve quality of life when deficiency is caught.
Who Should Get Tested?
Unexplained Weight Changes
Both weight gain and weight loss can be thyroid-related.
Women Over 30
Women are 5-8 times more likely to develop thyroid disorders.
Fatigue or Lethargy
Low thyroid (hypothyroidism) is a common cause.
Pregnancy Planning
Thyroid disorders affect fertility and pregnancy outcomes.
Family History
Thyroid disease runs in families.
Warning Signs — When Should You Get This Test?
Common Conditions Detected
Frequently Booked Together
Tests commonly ordered alongside Thyroid Function Test for a complete picture
Anti-TPO Antibodies
Detects autoimmune thyroid disease
Thyroid Ultrasound
Visualize thyroid gland for nodules or enlargement
Vitamin D & B12
Often deficient alongside thyroid disorders
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