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Free T4 Test (Thyroxine)

Free Thyroxine (FT4) test measures the unbound T4 hormone in the blood, which is essential for regulating metabolism. It helps diagnose thyroid disorders such as hypothyroidism.

Also known asfree t4ft4free thyroxinethyroxine free test
Available viaHome Collection, Lab Visit
GenderMale & Female
Contains1 parameters
Earliest reports inSame Day
PreparationNo preparation needed

Overview of Free T4 Test (Thyroxine)

The Free Thyroxine (FT4) test measures the level of free thyroxine in your blood. Thyroxine (T4) is a hormone produced by the thyroid gland, which plays a key role in regulating metabolism, energy production, and overall growth and development.

Why consider this Test?

  • Assess thyroid function: This test helps determine how well your thyroid gland is functioning.
  • Diagnose thyroid disorders: It is commonly used to diagnose thyroid conditions like hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid).
  • Monitor treatment: If you're undergoing treatment for thyroid problems, the FT4 test can help monitor the effectiveness of medications.

Who should get this Test Done?

  • For Hypothyroidism (underactive thyroid): Fatigue, weight gain, depression, and sensitivity to cold.
  • For Hyperthyroidism (overactive thyroid): Unexplained weight loss, rapid heartbeat, anxiety, and sensitivity to heat.
  • To evaluate thyroid function in combination with other tests like TSH (Thyroid Stimulating Hormone) and T3 (Triiodothyronine).
  • If you’re undergoing treatment for thyroid disease and your doctor wants to monitor your hormone levels.

More about test :

  • Low FT4 levels: May indicate hypothyroidism, where the thyroid is not producing enough thyroid hormone.
  • High FT4 levels: May indicate hyperthyroidism, where the thyroid is overactive and producing too much thyroid hormone.

 

 

Test included

Free T4 Test (Thyroxine) includes 1 parameter

  • Free Thyroxine (ft4)

Test code

3228

CPT and Loinc codes

Department

  • Endocrinology

Turn around time

Same Day

Test run frequency

Every Day TIME - 11:00 , 15:00

Performing locations

221 labs across India

Specimen vol. and vacutainer information

SpecimenVacutainerVolume
SerumYellow Vacutainer.5 ML

Specimen stability information

Serum

Free T4 Test (Thyroxine)

₹500

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