Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Percentage of index cases with variations of fT3 and fT4 according to the diagnosis of RTHβ or FDH.
| fT4 ↗ fT3 ↗ | fT4 ↗ fT3 Nl | fT4 Nl fT3 ↗ | |
|---|---|---|---|
| RTHβ | 89% | 8% | 3% |
| FDH | 44% | 56% | 0% |
Nl: ft4 or fT3 is considered normal for each assay ↗: ft4 or fT3 above the upper limit of each assay.
