Thyroid Profile 2

Description

Thyroid Profile 2

Thyroid profile 2 test panel is a standard test panel used to evaluate thyroid function. This includes the three thyroid panel tests, TSH, Free T3 and Free T4.

Importance of Free T3, Free T4 And TSH Test Panel

Triiodothyronine (T3) normally represents only approximately 5% of the thyroid hormone and, like thyroxine, is almost entirely bound to the carrier proteins, with only 0.25% of the total being in the free state. Measurement of free triiodothyronine is of value in confirming the diagnosis of hyperthyroidism, when an elevated free or total thyroxine level is found.

Abnormal total and free triiodothyronine concentrations may appear in T3 toxicosis, in the presence of normal thyroxine levels. Free T3 levels are unaffected by carrier protein variation. – Free thyroxine (FT4) comprises a small fraction of total thyroxine. The FT4 is available to the tissues and is, therefore, the metabolically active fraction. Elevations in FT4 cause hyperthyroidism, while decreases cause hypothyroidism.

Thyroid profile 2 test includes

1. Free T3 Test
2. Free T4 Test
3. Thyroid-Stimulating Hormone (TSH) Test

Note:

• Overnight fasting is not required
• Sometimes, the doctor may advise 10 to 12 Hours fasting before the sample collection
• Doctor’s prescription may be needed
• The test result may vary depending on gender, age, health history, etc.

Also known as Free T3 and Free T4 Blood, Free T3 and Free T4, 

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