The antibody test is a simple blood test.
Weight gain is a symptom of hypothyroidism, so it's quite possible it's related.
Especially with his other health issues, your doctor would be the best one to recommend diet or to refer you to a dietician.
What is the anti bodies test? Is it any kind of blood test?
Also, now my baby is 8.5 months old and weighs 10kg. My doctor says that his weight needs to be checked? Can his weight gain be due to thyroid issue?
Any diet to follow for him now ? Is there any specific symptom for this kind of thyroid problem?
It doesn't always continue for life. There are some conditions that cause transient hypothyroidism. That's why I suggested testing for antibodies. If his antibodies are not elevated, then he will have a reasonable chance of getting over this. If they are elevated, then it's probably for life. You can also wait and see if he does get better, as your doctor thinks he will. You can test for antibodies at any time.
Thank you for your inputs. I have heard that once we start on thyroid medication it continues life long. Is it true? My baby's cardiologist still feels that his thyroid imbalance is transitional, and a side effect of his open heart surgery. I am hoping that he will be out this medication sooner or later.
What do you feel?
I am the first in my family to have Hashi's. It's not necessary to have a relative with it to develop it. It's usually standard treatment to test for it in any case of thyroid dysfunction, whether there's a family history or not. If he has Hashi's, you will know that he will have to be on thyroid meds all his life.
I think the dose he's on now looks reasonable. His FT4 looks really good right now. If you lower his dose, that would fall down too low in the range. FT3 is still high. I think it would be worthwhile to test again in another month and make sure it's continuing to fall.
I also notice that the reference ranges you posted for both FT3 and FT4 are pretty "standard" adult reference ranges. Babies have higher reference ranges for both FT3 and FT4. For example, I found FT4 reference range for 0-12 months of 1.3-2.8 and FT3 reference range of 1.5-6.0.
However, ranges are also specific to each lab. It might be worthwhile to give your lab a call and ask for their own age adjusted ranges (they might not even know they have them). Alternatively, you could ask your doctor about the reference ranges for babies. He may be aware that babies run higher FT3 and FT4 than adults and is basing his meds decisions on that knowledge.
Thanks for your suggestion. As I already discussed, he has undergone an open heart surgery on Sept 23rd, 2013. And at that point, his heart rate was higher than normal, which the doctors said will settle down eventually. I didn't observe any other symptoms in him.
And, neither me nor my husband has had any thyroid issues so there is no question of hereditary as well. now
So do you think he is on correct dose of medicines as of now ?
Thanks alot. So do you think the dosage of the medicine should be decreased..?? please respond.
TSH - 0.057microIU/ml
TSH - 0.015microIU/ml
Both of these are low, indicating meds are too high.
Free T3 is also high.