Total Thyroxine (T4) Test
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 testSafe and hygienic sample collection
Experienced phlebotomists
Quality-assured diagnostic processing
Digital report access
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.
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.
Our popular test bundles
Explore preventive profiles commonly booked with individual diagnostic tests.
Complete Health Screening
✓ Complete Blood Count
✓ Liver Function Test
✓ Kidney Function Test
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
Related articles
Understanding your diagnostic report
Read articleHow to prepare for a blood test
Read articleWhy preventive screening matters
Read articleBenefits of home sample collection
Read articleBook Total Thyroxine (T4) Test with Apollo Diagnostics
Trusted diagnostic testing with convenient home sample collection.