Thyroid disease

[Zahrazori]

What level should thyroid peroxidase antibodies be

[greygoose]

Not sure what you mean by that, but to be positive, they should be over the range; to be negative they should be low in range. But, ranges vary from lab to lab, so impossible to put an actual number on that.

Besides, antibodies fluctuate all the time, so one negative result cannot rule out Hashi's. Plus, some Hashi's people never develop high antibodies. So, a blood test can rule Hashi's in, but not out. Hope that helps.