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CertifiedLabsWhat is T3 - Free Test?
Free T3 is the active, unbound form of triiodothyronine, one of the main thyroid hormones. The thyroid gland in your neck makes hormones that control how fast your body uses energy. The free T3 blood test measures the active form of this thyroid hormone. It helps doctors assess thyroid function, especially when an overactive thyroid is suspected.
T3 - Free Test Parameters
Free T3
T3 - Free Test Preparation
Before the Test
Tell your doctor about all medicines and supplements, especially thyroid medicines and biotin (a common supplement), as these can affect results.
Mention any recent illness.
Fasting is usually not required.
During the Test
A trained Orange Health Labs professional will collect your sample during the visit.
Follow the instructions given to you at the time of collection.
The sample is labelled and sent to the laboratory for testing.
Let the collection team know if you feel unwell during the procedure.
Why Take the T3 - Free Test?
It is recommended:
To investigate symptoms of an overactive thyroid, such as weight loss, fast heartbeat, or feeling hot and anxious.
To add detail to other thyroid tests such as TSH and T4.
To help diagnose and monitor thyroid disorders.
To track the response to thyroid treatment.
When thyroid problems are suspected. Often read together with TSH and T4.
FAQs on T3 - Free
The free T3 blood test measures the active form of this thyroid hormone. It helps doctors assess thyroid function, especially when an overactive thyroid is suspected.
It is done to investigate symptoms of an overactive thyroid, such as weight loss, fast heartbeat, or feeling hot and anxious, add detail to other thyroid tests such as TSH and T4, help diagnose and monitor thyroid disorders, and track the response to thyroid treatment.
$no_fasting_required$
A trained Orange Health Labs professional will collect the required sample during your visit, following standard procedure.
When thyroid problems are suspected. Often read together with TSH and T4.
Results outside the normal range can point to the conditions this test is used to detect or monitor. Your doctor will interpret your results along with your symptoms and any other tests.
Share your report with your doctor, especially if your results are abnormal or your symptoms continue, so they can advise you on the next steps.
Payment & Refund Policy
- We do not accept cash payments
- All modes of online payment are accepted
- Refunds will be credited back to the source of payment within 5-7 working days of order cancellation.