First-time thyroid patient... start w/T3 only?

[Guest guest]

My sister is getting her thyroid labs for the first time soon and I'm wondering

if we can prevent the whole RT3 issue like I had before she even gets in to it.

In other words, would she have to start with something like Armour if her labs

indicate hypo or are there signs of RT3 issues that might show up right away and

would she just start with something like Cynomel? She can try to get her

ferretin tested too.

Amy