Measures free T4 hormone to support thyroid function interpretation.
Download Free Thyroxine (ft4) Test Visual Guide infographic (PNG)
| Result context | Guide |
|---|---|
| Typical adult | about 0.8 - 1.8 ng/dL |
| Low FT4 | underactive pattern |
| High FT4 | overactive pattern |
Reference intervals vary by method, pregnancy and lab platform.
Free Thyroxine (ft4) is a laboratory test. Measures the active unbound T4 hormone.
Your clinician can advise whether this test is appropriate for you. The result should be read with the laboratory range, symptoms, medical history and other relevant results. The listed sample type is Blood (Serum).
Reference ranges vary by laboratory and method. Use the range printed on your final report. The information below is educational only.
| Measure | Typical guide | Note |
|---|---|---|
| Result unit | ng/dL or pmol/L | Use the reference range printed on your final report. |
| High FT4 | Above lab range | May support overactive thyroid review when TSH is low. |
| Low FT4 | Below lab range | May support underactive thyroid review when TSH is high. |
| Reason | Description |
|---|---|
| Thyroid function | Measures the active unbound T4 hormone. |
| TSH follow-up | Helps explain abnormal TSH results. |
| Treatment tracking | Often used while monitoring thyroid medicine. |
| Situation | Description |
|---|---|
| High thyroid symptoms | Weight loss, fast heartbeat, heat intolerance, tremor, anxiety. |
| Low thyroid symptoms | Fatigue, weight gain, cold intolerance, constipation, dry skin. |
| Follow-up users | People with thyroid disease, pregnancy thyroid review or medicine monitoring. |
| Topic | Guidance |
|---|---|
| Fasting | No fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions. |
| Medicine timing | Thyroid tablets and supplements may affect interpretation. |
| Best read with | TSH, FT3 and symptoms. |
The current Free Thyroxine (ft4) price in Pratapgarh is Rs. 288. The final booking details are shown before you confirm.
No fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions.
Select Add to Cart or Book Now, choose a suitable slot and provide your address and pincode. Home collection is available where serviceable.
Payment is made after sample collection. Review the final booking amount before confirming your order; the collection team can confirm the available payment methods.
Your report shows the laboratory reference range. A doctor can interpret the result together with your symptoms, medical history and other tests.
Thyrocare states that most test reports are available within 24–48 hours after the sample reaches the laboratory, depending on the test. This is a general estimate, not a guaranteed turnaround for this test; sample transport time is additional. Completed reports are shared digitally.
Free Home Sample Collection in Pratapgarh
Coverage for home collection
Popular neighbourhoods include Bela Pratapgarh · Azad Nagar · Chauraha · Katra Rd · Patti · Ajeet Nagar · Balipur · Banveer Kachh · Cinema Rd · Civil Line Rd · Ghantaghar · Pbhbela · Royal Poly Clinic Rd · Thana · Vivek Nagar · Zila Panchayat Market. Enter your pincode to confirm home collection.