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Comments ...

 +0  (nbme24#24)

The diet is prescribed, so no need to refer to dietician anymore. It is a case of the patient non-compliance of diet. But why can't advise the parents to stop bickering?


 +0  (nbme20#26)

This is how my brain farted while I was doing this question.... I wanted to choose TBG deficiency, but I kept thinking that if TBG is deficient, that means there are less or no binding proteins in the blood. And how can the free T4 be normal? Shouldn't free T4 increase if there were less T4 binding protein? ...





Subcomments ...

submitted by sugaplum(43),

This is apparently congenital thyroid binding globulin deficiency

"Thyroxine-binding globulin deficiency — Thyroxine-binding globulin (TBG) deficiency is characterized by low serum total T4 but normal free T4 and TSH; the diagnosis is confirmed by measuring TBG concentrations. These infants have normal thyroid function and do not require treatment." - uptodate *can't find in FA, maybe it is in there somewhere?

hhsuperhigh  The only thing I can relate to this is FA P331 " TBG in pregnancy, OCP use (estrogen increases TBG) increases total T3/T4", so here is the opposite situation, which TBG decreases, and total T3/T4 decreases... +