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Lab test

Free T4 (FT4)

Also known as: Free T4

Purpose: Evaluates how well your thyroid gland is functioning, often ordered alongside TSH (Thyroid Stimulating Hormone) tests to diagnose and monitor hypothyroidism (underactive) or hyperthyroidism (overactive).…

Sample
Serum
Preparation
No fasting needed
Report in
12 hours
Collection
At your home

About this test

Key Details About the Free T4 Test:

  • Purpose: Evaluates how well your thyroid gland is functioning, often ordered alongside TSH (Thyroid Stimulating Hormone) tests to diagnose and monitor hypothyroidism (underactive) or hyperthyroidism (overactive).
  • Symptoms Tested: Doctors may order this if you show symptoms like unexpected weight changes, fatigue, hair loss, anxiety, or heart rate fluctuations.
  • Procedure: Requires a small blood sample drawn from a vein in your arm.
  • Preparation: Generally, no preparation is needed, but you must inform your provider of all medications and supplements (especially biotin) as they can interfere with results.
  • Results Interpretation: High levels suggest hyperthyroidism, while low levels suggest hypothyroidism.

Preparation

  • No fasting is needed for this test. You can book any available slot.
  • Keep your doctor’s prescription or test request handy if you have one, and take regular medicines as your doctor has advised.
  • Tell the sample collector if you take blood thinners, and wear a sleeve that rolls above the elbow.

How home sample collection works

  1. 1

    Choose your tests

    Add single tests or a package to the cart and check fasting needs.

  2. 2

    Pick a collection slot

    Half-hour slots from 30 minutes ahead, up to 10 days out. Pay online.

  3. 3

    A sample collector visits

    They confirm the visit with a one-time code, then take the sample.

  4. 4

    Report in your account

    The lab uploads the report and you are notified to download it.

Where we collect samples at home

Lab tests with home sample collection reach 70 Hyderabad pin codes today, across these areas:

Coverage differs street to street and grows as professionals join. Check your pin code to see what reaches your address.

Frequently asked questions

How much does Free T4 (FT4) cost in Hyderabad?

Free T4 (FT4) costs ₹229 on Aish Health in Hyderabad, down from ₹529. There is no separate home collection fee; any GST or busy-hour charge is shown before you pay.

Do I need to fast before Free T4 (FT4)?

No, fasting is not needed for this test, so you can book any available slot.

When will I get the Free T4 (FT4) report?

The expected report time is 12 hours. The partner lab uploads the report as a PDF to your order and you are notified to download it.

What sample is collected for Free T4 (FT4)?

Serum sample is collected at your home by a sample collector.

Can I cancel a lab test booking?

Yes. Cancel before a sample collector accepts or more than 1 hour before the slot for a full refund. Within 1 hour of the slot there is no refund, and once the sample collector is on the way the booking can no longer be cancelled.

Can I book tests for a family member?

Yes. Add them as a family member in your account and choose them as the patient when booking, so the report is filed under their name.

Can I pay cash when the sample is collected?

No. Lab tests booked on the website or app are paid online when you book, by card, UPI or your Aish Health wallet.

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