Hi XXXXXXX

Thanks for posting query here.

Thyroid functions are detected by blood test T3, T4 and TSH level which is good test and gives vital information.

It is not absolutely necessary to be fasting for thyroid test, however if one is not fasting, levels of TSH may come slightly lower.

It is common practice to take blood in fasting as usually other tests are done simultaneously like Fasting Blood Sugar.

Hope this information will help you. If you have any further query, I will be happy to answer that.

Regards

---

Hi XXXXXXX

1. Hair fall is possible in hypothyroid state, but there are other features like generalized swelling, thick skin, slowing, constipation, weight gain, irregular cycles, etc which accompany hypothyroidism. Hence we cannot clearly attribute hair problems to thyroid issues.
Similarly headache may or may not be related to thyroid.

2. As far as normal / acceptable levels are concerned, that would depend on the units of measurements and age of the patient. In India the general accepted values in an adult are as follows:
- T3 is 80 to 200 nanogm/dl
- T4 is 4.5 to 12.5 microgm/dl
- TSH is 0.5 to 4.70 microIU/ml

3. The results of thyroid functions need to be correlated clinically. If all the findings are consistent with an abnormality medications can be started.
If thyroid problem is suspected, it is advisable to visit Endocrinologist for further evaluation. Accurate treatment can planned accordingly.

Do not worry and keep me informed about progress.

Hope I have answered your query.
If all your queries are answered, please close this discussion.

Regards

---