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Free T4 Test Results

Free T4 test results, 16.8,Normal range 4.8-13.9
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Avatar universal
"Normal" is an inadequate description.  The range is far too broad to be functional from bottom to top.  B12 needs to be in the upper third of the range.  What was the actual number for B12?  Same question for Vitamin D.  You also need to test for ferritin at next opportunity.  I'll be surprised if the drop to 100 mcg of T4 is adequate, but time will tell.
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This was  a total T4test,not a Free T4 test
TotalT4-16.8,normal-4.8-13.9
PCP office did wrong tes tI asked for FreeT4 test
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Avatar universal
endo is having me not take snythoid for two days.Then he has given me new prescription of.100 daily.
This was just after I added symptoms today.of insomnia, dizzinees,fatigue,night sweats Before that he said it was high end of normal and manintain meds at current level.
He said.75mg was too great a change.
Vitamin D was low ,but lab  in june was normal.  I take 2000 Vit D.
Vitamin B12 was normal.
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Avatar universal
That correction on the Free T3 result changes the picture a lot.  Looking at your Free T4 being over the range substantially, and your Free T3 being about 68 % of its range, that means that you are not converting the T4 to T3 very well.  Your Free T3 has been driven up that high only by driving your Free T4 well above range.  

I expect that you could easily drop to 75 mcg of T4, but you need to discuss that with your doctor.  Be aware that as T4 dosage is decreased, your Free T3 is going to diminish also.  If it drops too much, you may see a return of hypo symptoms, requiring some T3 med to increase your Free T3.  

Another thing we haven't gotten into is that hypo patients frequently find that they are too low in the ranges for Vitamin D, B12, and ferritin.  So it would be a good idea to have those tested as well.  
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Avatar universal
results faxed to endochronologist 9/10.  Called office for reply on snythroid amount dosage.  PCP did blood tests suggested dosage lowering.
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Avatar universal
How much reduction do you think Dr. should prescribe?
Taking100mg since 8/25
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