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Measures

Number of red blood cells in the blood

Identifies

Red blood cell disorders

Measures: Number of red blood cells in the blood

Identifies: Red blood cell disorders

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What is the maximum days the report can be obtained for the test

The maximum days the report can be obtained for the test FT3 (Free Triiodothyronine 3) Test is 5 days.

What are the prerequisites for the test FT3 (Free Triiodothyronine 3) Test

  • Fasting: The patient may be required to fast for a certain period of time before the test, typically 8-12 hours.
  • Medications: Certain medications may interfere with the test results, so the patient may need to stop taking them before the test. It's important to consult with a healthcare provider about which medications to stop and for how long.
  • Pregnancy: Pregnancy can affect thyroid hormone levels, so it's important to inform the healthcare provider if the patient is pregnant or planning to become pregnant.
  • Health conditions: Certain health conditions, such as liver disease or kidney disease, can affect the results of the test. It's important to inform the healthcare provider about any existing health conditions.

What are the measure values for the test FT3 (Free Triiodothyronine 3) Test

  • Normal range: 2.3-4.2 pg/mL
  • Low levels: < 2.3 pg/mL
  • High levels: > 4.2 pg/mL

What does this test FT3 (Free Triiodothyronine 3) Test identify?

The FT3 (Free Triiodothyronine 3) test is a blood test that measures the level of free triiodothyronine in the bloodstream. Triiodothyronine (T3) is a thyroid hormone that plays a crucial role in regulating metabolism, energy production, and growth and development. Free T3 refers to the portion of T3 that is not bound to proteins in the blood and is available for use by the body's cells.

The FT3 test is used to evaluate thyroid function and diagnose conditions such as hyperthyroidism (an overactive thyroid) or hypothyroidism (an underactive thyroid). Abnormal levels of free T3 can indicate thyroid dysfunction and may be associated with symptoms such as weight changes, fatigue, and mood disturbances.

Why is this test FT3 (Free Triiodothyronine 3) Test taken?

  1. Diagnosing thyroid disorders: The FT3 test is commonly used to diagnose thyroid disorders, such as hyperthyroidism or hypothyroidism. By measuring the levels of free triiodothyronine in the blood, healthcare providers can determine if the thyroid gland is functioning properly.
  2. Monitoring thyroid treatment: For individuals who are already receiving treatment for a thyroid disorder, the FT3 test can help monitor the effectiveness of the treatment. It allows healthcare providers to make adjustments to medication dosages as needed to ensure that thyroid hormone levels are within the normal range.
  3. Assessing overall thyroid function: In addition to the FT3 test, healthcare providers may also order other thyroid function tests, such as the FT4 (Free Thyroxine) test and TSH (Thyroid-Stimulating Hormone) test, to get a comprehensive assessment of thyroid function.

Popular FAQs on Test

The FT3 test measures the level of triiodothyronine (T3) that is not bound to proteins in the blood. This provides information about the active form of T3 in the body.
The FT3 test is usually done to evaluate thyroid function and diagnose conditions such as hyperthyroidism or hypothyroidism. It can also be used to monitor treatment of thyroid disorders.
The FT3 test is a simple blood test. A healthcare provider will draw a sample of blood from a vein in your arm, and the sample will be sent to a laboratory for analysis.
The results of the FT3 test can help determine if your thyroid is functioning properly. Abnormal levels of FT3 may indicate an underlying thyroid disorder that requires further evaluation and treatment.
There are minimal risks associated with the FT3 test, similar to any blood test. Some people may experience slight pain or bruising at the site where the blood was drawn.

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