Common "Thyroid Function Test" queries answered by top doctors | iCliniq

Thyroid Function Test

Thyroid function test is the blood tests done to diagnose thyroid problems. It includes checking the levels of TSH (Thyroid Stimulating Hormone), T3 (Triiodothyronine), T4 (Tetraiodothyronine), FT3 (Free T3), FT4 (Free T4), etc. This test can be done at any time of the day, as fasting is not needed.

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What do high T3 levels and thyroid peroxidase antibodies indicate?

Query: Hello doctor, My free T3 level is 1.36 ng/dL, thyroid peroxidase Ab is 509 IU/ml, plasma-c reactive protein 5.48 mg/dL. I would like to get a prescription for thyroid, if needed. I am currently on Bisoprolol 1.25 mg.  Read Full »


Dr. Zulfiqar Ahmed

Answer: Hi, Welcome to icliniq.com. You have hyperthyroidism means increased thyroid hormones. Your TPO (thyroid peroxidase) is also increased. How are your symptoms? Like tremors, loss of weight, nervousness, etc.? How bad are your symptoms? Do you have pain in front of your neck? Have you done TSI? Do y...  Read Full »

What is the reason for increased level of total T3 even with medication?

Query: Hi doctor, I need to consult an endrocrinologist. My Tri-iodothyronine total (T3)^ 0.80. I am already taking 50 mcg Thyronorm. Please advise the new dosage.  Read Full »


Dr. Zulfiqar Ahmed

Answer: Hi, Welcome to icliniq.com. I have seen the report (attachment removed to protect patient identity). Your total T3 is mildly low but it is normal because your T4 and TSH (thyroid-stimulating hormone) are in the proper range. So you do not need to change your dosage of Thyronorm (Thyroxine sodium...  Read Full »

I am concerned about my thyroid results. Kindly help.

Query: Hi doctor,I am a 56-year-old woman. I am going for a holiday. I have been experiencing some unexplained symptoms which I suspected are related to an overactive thyroid. Last week, I had a private ultrasound which showed a small nodule. I also had some blood tests done and I have just received the...  Read Full »


Dr. Zulfiqar Ahmed

Answer: Hi, Icliniq.com welcomes you. I understand your concern and will try my best to give you all the answers in a very easy and clear manner. From your symptoms and blood results (attachment removed to protect the patient’s identity) it seems you have overactive thyroid. You may need some further tes...  Read Full »

Is hyperthyroidism a serious condition, and what is the treatment for it?

Query: Hi doctor, Is my hyperthyroidism serious? Kindly help.  Read Full »


Dr. Zulfiqar Ahmed

Answer: Hi, Welcome to icliniq.com. I understand your concern. Your blood tests (attachment removed to protect the patient’s identity) show you have hyperthyroidism. It means your thyroid gland is producing more thyroid hormones. We need to know if you have any related symptoms like palpitations, tremo...  Read Full »

What do my thyroid function test reports say?

Query: Hi doctor, I am a 58-year-old male. I need consultation for my thyroid treatment. I have been taking medicines for more than a year. Recently I have not been able to visit my doctor, and he is not available online. I have been taking Thyroxine Sodium tablets. Thyronorm 75 mcg for the initial three m...  Read Full »


Dr. Zulfiqar Ahmed

Answer: Hi, Welcome to icliniq.com. Thanks for your query. Your thyroid hormone levels are high, and your TSH (thyroid-stimulating hormone) level is very low. Your TSH target should be from 0.7 mIU/mL to 4 mIU/mL. If it is less than 0.7 mIU/mL, you need to decrease your dose, and if it is over 4 mIU/mL, ...  Read Full »

How often should thyroid function tests be done?

Query: Hi doctor, I have been taking thyroid medicine for the last three years. The recent test was done three days before shows HbA1c 6.6 %, cholesterol 204 mg/dL, fasting blood glucose 116 mg/dL, total T3 - 21.6 ng/dL, total T4 -12.10 mcg/dL, and TSH 12.71 mIU/mL. The medicines I am taking now are Thyron...  Read Full »


Dr. Zulfiqar Ahmed

Answer: Hi, Welcome to icliniq.com. Thank you for the query. Suppose your TSH (thyroid-stimulating hormone) is 12.71 mIU/mL; you need to increase your Thyronorm to 100 mcg once daily before breakfast. Recheck your TSH after six to eight weeks. Your TSH should be within 0.5 mIU/mL to 5 mIU/mL. If it is hig...  Read Full »

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