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Book Triiodothyronine Free(T3) Test at Best Price In Hyderabad

The T3 - Free (Tri-iodothyronine-Free) test is a blood test that measures the level of Free T3, which is the unbound portion of triiodothyronine hormone circulating in the bloodstream. T3 is a thyroid hormone that plays a vital role in metabolism, energy production, and the regulation of body temperature. The free T3 test is particularly important because it can provide information about thyroid function without the influence of protein levels, which can affect the total T3 levels.


  • Test NameT3 - Free (Tri-iodothyronine-Free)
  • Sample TypeBlood
  • Preparations RequiredNo specific instructions
  • Report Time4 hours

This test is often used to diagnose and monitor thyroid disorders, such as hyperthyroidism (an overactive thyroid) or hypothyroidism (an underactive thyroid). It is also an essential test for evaluating how well the thyroid gland is working and can be used in conjunction with other thyroid tests such as TSH (thyroid-stimulating hormone) and T4 (thyroxine).

Home Sample Collection Process

1
Book your convenient slot
Book your convenient slot
2
Sample Collection by Phlebotomist
Sample Collection by Phlebotomist
3
Reporting of the sample at lab
Reporting of the sample at lab
4
Download Reports
Download Reports
Frequently Asked Questions

The Free T3 test is ordered when a person has symptoms of hyperthyroidism or hypothyroidism, or to monitor the effectiveness of treatment for a thyroid disorder.

Symptoms of hyperthyroidism include nervousness, tremors, increased heart rate, weight loss, excessive sweating, and intolerance to heat.

Symptoms of hypothyroidism include fatigue, weight gain, dry skin, cold intolerance, hair loss, and depression.

The test is performed by drawing blood from a vein, usually in your arm. The blood sample is then sent to a laboratory for analysis.

No, fasting is not required for the Free T3 test.

Factors such as pregnancy, medications (e.g. birth control pills, estrogen), severe illness, and liver disease can affect Free T3 levels.

Total T3 measures both the bound and unbound forms of the T3 hormone, while Free T3 measures only the unbound form that is biologically active.

Normal levels of Free T3 typically range from 2.0 to 4.4 pg/mL, but normal ranges may vary slightly among different laboratories.

A high level of Free T3 may indicate hyperthyroidism, Graves' disease, or toxic multinodular goiter.

A low level of Free T3 may indicate hypothyroidism, Hashimoto's thyroiditis, or non-thyroidal illness syndrome.

The frequency of testing depends on your health condition and should be determined by your doctor.

No special preparation is needed for the Free T3 test.

The risks are minimal and are similar to those of a standard blood draw.

Yes, certain medications such as estrogen, birth control pills, and thyroid medications can affect the results.

Yes, but pregnancy can affect Free T3 levels, so your doctor should interpret the results with this in mind.

Typically, you will get the results within 1-2 days, but the time may vary depending on the laboratory.

No, this test cannot diagnose thyroid cancer. It is used to evaluate thyroid function.

Yes, this test can be used to monitor the effectiveness of treatment if you have a thyroid condition.

Yes, this test can be used as a part of a routine health check-up, even if you do not have any symptoms.

Yes, if you have a family history of thyroid disease, you may need regular testing to monitor your thyroid function.

In conclusion, the Free T3 test is a critical part of evaluating thyroid health. If you have any symptoms of thyroid disease or if you are being treated for a thyroid condition, this test can provide essential information about your thyroid function. Always consult with your healthcare provider to understand the significance of your results and the best course of action for your health.

Extremely high levels of T3 may indicate a severe form of hyperthyroidism called thyrotoxicosis, which can cause severe symptoms and may require immediate treatment. Very low levels of T3 can lead to a condition called myxedema coma, a life-threatening but rare complication of hypothyroidism that requires immediate medical attention.

The frequency of testing depends on the type and severity of the thyroid disease, as well as the person's response to treatment. Your healthcare provider can provide guidance on how often you should have this test.

If not adequately treated, both hypothyroidism and hyperthyroidism can lead to serious health problems, such as heart disease or osteoporosis. However, with appropriate treatment, people with thyroid disease can lead a healthy and normal life.

There is no specific food known to directly affect Free T3 levels. However, maintaining a balanced diet can support overall thyroid health. Some research suggests that severe iodine deficiency can affect thyroid function.

No, this test requires a blood sample, which must be drawn by a healthcare professional and analyzed in a laboratory.

No, the thyroid function test typically refers to a panel of tests, including TSH, T3, and T4. The Free T3 test is a part of this panel.

The T3 uptake test is an older test used to evaluate the binding capacity of proteins that carry thyroid hormone in the blood. It does not measure T3 levels directly, like the Free T3 test.

T3 and T4 are both hormones produced by the thyroid gland. T4 is produced in greater amounts, but T3 is more active. The body converts T4 into T3 as needed.

Intense or prolonged exercise can affect the levels of thyroid hormones, including Free T3. However, this does not necessarily indicate a problem with the thyroid gland.

Stress can affect the overall functioning of the thyroid gland and may affect the levels of thyroid hormones, including Free T3.

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