logo

location icon
collection

Home Collection

04069467075
Frequently Booked Available in Hyderabad

Total Thyroxine (T4) Test

The thyroid gland produces the main hormone thyroxine, also known as T4, which is then converted into T3 (triiodothyronine). The pituitary gland produces another hormone)TSH (thyroid stimulating hormone) that controls the production of T4. If the amount of T4 is less, then pituitary produces more TSH to stimulate the production of T4. If the levels of T4...

Medically reviewed by Apollo Diagnostics

Clinical information verified by our diagnostics team

Sample type

As advised

Gender

Male & Female

Age group

All age groups

Preparation

As advised

Report delivery

Speak to our care team

Parameters

Test specific

APOLLO DIAGNOSTICS

Total Thyroxine (T4) Test

Select your city to view current price, preparation and home collection availability.

Book this test

Safe and hygienic sample collection

Experienced phlebotomists

Quality-assured diagnostic processing

Digital report access

Call to Book

Home sample collection

Convenient collection available in Hyderabad

Apollo quality assurance

Reliable processing at accredited diagnostic laboratories

Digital reports

Access your diagnostic reports online when ready

Trusted Diagnostics. Quality You Can Rely On.

Apollo standards across collection, processing and reporting

1500+

Diagnostic centres

10M+

Tests processed annually

NABL & CAP

Accredited laboratory

Home

Sample collection

Digital

Report access

Test parameters

Parameters are reported according to the selected test and laboratory protocol.

Clinical laboratory analysis
Quality-controlled processing
Reference ranges in report
Doctor-ready digital report

The thyroid gland produces the main hormone thyroxine, also known as T4, which is then converted into T3 (triiodothyronine). The pituitary gland produces another hormone)TSH (thyroid stimulating hormone) that controls the production of T4. If the amount of T4 is less, then pituitary produces more TSH to stimulate the production of T4. If the levels of T4 go above a certain range, then the production of TSH is stopped by the pituitary gland. In this way, the pituitary gland helps in maintaining appropriate levels of the thyroid hormone in the body.


The majority of the T4 is bound to proteins called thyroxine binding globulin and about 0.05% or less than 1% circulates freely. A Total Thyroxine T4 Test measures both the bound and free thyroxine.

Why is the test ordered?

The test may be ordered to detect thyroid disorders, evaluate thyroid gland function and also to monitor treatment. Total Thyroxine T4 Test is a good indicator of the thyroid function when the thyroid binding proteins are normal and also when a non-thyroidal disease is absent.

When is the test ordered?

A Total T4 Test may be advised by a physician to determine the cause when the TSH test results indicate abnormalities. Typical signs and symptoms associated with thyroid disorder include
  • Changes in weight
  • Issues with the eyes
  • Dry skin
  • Hair loss
  • Irregular heartbeat
  • Increased heart rate
  • Fatigue
  • Weakness
  • Insomnia
  • Sensitivity to light.
  • How is the sample collected?

    A blood sample is collected from a vein in the arm.

    How to prepare for the test?

    It is better to inform the doctor about all the medicines that the patient is on, before taking the test.

    Our popular test bundles

    Explore preventive profiles commonly booked with individual diagnostic tests.

    Most Popular

    Complete Health Screening

    ✓ Complete Blood Count

    ✓ Liver Function Test

    ✓ Kidney Function Test

    View packages
    Popular

    Essential Wellness Profile

    ✓ Blood Sugar

    ✓ Lipid Profile

    ✓ Thyroid Profile

    View packages
    Basic

    Preventive Health Check

    ✓ CBC

    ✓ Urine Examination

    ✓ Blood Glucose

    View packages

    Total Thyroxine (T4) Test availability by city

    Pricing and home collection availability may vary by city. Select your location to view the current booking options.

    Hyderabad

    Selected location

    Delhi

    Check availability

    Mumbai

    Check availability

    Bengaluru

    Check availability

    Chennai

    Check availability

    What our patients say

    “Simple home collection process and helpful staff.”

    Verified patient

    “The booking experience was convenient and the report was easy to access.”

    Verified patient

    “Professional sample collection with timely updates.”

    Verified patient

    Frequently asked questions

    This test helps assess relevant health markers. Your doctor can interpret the result together with symptoms, history and other investigations.

    Preparation requirements can vary. Follow the instructions shown during booking or those provided by your doctor or Apollo Diagnostics.

    Home sample collection is available in supported locations. Availability is confirmed during booking based on your selected city and address.

    Reports are made available digitally after laboratory processing is complete. Report time can vary by test and location.

    A healthcare professional should interpret results that are abnormal, unexpected or associated with symptoms.

    Related health packages

    Full Body Checkup

    Preventive health screening from Apollo Diagnostics.

    View package

    Women's Health Package

    Preventive health screening from Apollo Diagnostics.

    View package

    Senior Citizen Package

    Preventive health screening from Apollo Diagnostics.

    View package

    Diabetes Care Package

    Preventive health screening from Apollo Diagnostics.

    View package

    Related articles

    Understanding your diagnostic report

    Read article

    How to prepare for a blood test

    Read article

    Why preventive screening matters

    Read article

    Benefits of home sample collection

    Read article

    Book Total Thyroxine (T4) Test with Apollo Diagnostics

    Trusted diagnostic testing with convenient home sample collection.

    Partner with us

    Partnering with us offers entrepreneurs valuable mentoring, marketing guidance, and administrative support, paving the way for success.

    For bulk test bookings, Reach out to us at:

    customer.care@apollodiagnostics.in

    Move To Top

    Copyright © 2024 Apollo Diagnostics (Apollo Health and Lifestyle Limited), All Rights Reserved

    Have a prescription ?

    prescription icon

    Call Us

    04069467075

    call icon