Thyroid Function Test Test Price and Details
7 labs availableLast Updated On Monday, September 16, 2024
What is the Thyroid Function Test?
The thyroid Function Test is done to check the functionality of the Thyroid gland, a butterfly-shaped gland located in the neck region. It can detect either hypothyroidism or hyperthyroidism. TSH, T3, and T4 are the most common thyroid test. TSH measures thyroid-stimulating hormone and is the perfect measure of thyroid activity. T3 and T4 measure different hormones in the thyroid gland.
When is a Thyroid Function Test performed?
A Thyroid Function Test is used to determine the Thyroid
glands' health. It can tell if you have hyperthyroidism (too much thyroid
hormone) or hypothyroidism (too little thyroid hormone) in your blood. If you
experience the following symptoms, you must get your test done.
The following are hyperthyroidism symptoms:
- Weight loss, even though you may be eating more than usual
- Rapid or irregular heartbeat
- Feeling nervous or irritable
- Trouble sleeping, fatigue
- Shaky hands, muscle weakness
- Sweating or being very sensitive to heat
- Frequent bowel movements
- Goiter (enlarged thyroid)
The following are hypothyroidism symptoms:
- Fatigue
- Weight gain
- Being very sensitive to cold
- Joint and muscle pain
- Dry skin
- Dry, thinning hair
- Heavy or irregular menstrual periods
- Depression
- Constipation
If you also experience any of the symptoms mentioned above, get your test as soon as possible.
What does a Thyroid Function Test detect?
Following things are checked in a thyroid test.
- Serum
thyroxine (T4)
- Free
thyroxine fraction (FT4F)
- Free
Thyroxine (FT4)
- Thyroid
hormone binding ratio (THBR)
- Free
Thyroxine index (FT4I)
- Serum
Triiodothyronine(T3)
- Free
Triiodothyronine l (FT3)
- Free T3
Index
- Radioactive
iodine uptake
- Serum
thyrotropin (TSH)
- Thyroxine-binding
globulin (TBG)
- TRH
stimulation test Peak (TSH)
- Serum
thyroglobulin l (Tg)
What are the benefits of this test?
You get a diagnosis for all of your symptoms in a Thyroid Function Test, and you then get to be able to treat it properly. You can tell and distinguish if you have a hyper or hypo condition. In the test of thyroid antibodies, you will get help to diagnose an autoimmune thyroid disorder such as Graves' disease. It is also indeed the most common cause of hyperthyroidism. And also Hashimoto's disease. It is the most common cause of hypothyroidism. Thyroid antibodies are made when your immune system attacks the thyroid gland by mistake.
When should I know the results of the Thyroid Function Test?
You can get your test results after a day, and even in some labs, you can get the results within a few hours. It depends on where you get tested, and most of the time, the standard time to get your test results is after 24 hours.
Thyroid Function Test Results range?
Here are the normal ranges of the Test.
- Serum thyroxine (T4): 4.6-12 ug/dl
- Free thyroxine fraction (FT4F): 0.03-0.005%
- Free Thyroxine (FT4): 0.7-1.9 ng/dl
- Thyroid hormone binding ratio (THBR): 0.9-1.1
- Free Thyroxine Index (FT4I): 4-11
- Serum Triiodothyronine(T3): 80-180 ng/dl
- Free Triiodothyronine l (FT3): 230-619 pg/d
- Free T3 Index: 80-180
- Radioactive iodine uptake: RAIU 10-30%
- Serum thyrotropin (TSH): 0.5-6 uU/ml
- Thyroxine-binding globulin (TBG): 12-20 ug/dl T4 1.8 ugm
- TRH stimulation test Peak (TSH): 9-30 uIU/ml at 20-30 min
- Serum thyroglobulin l (Tg): 0-30 ng/m
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