Unit Code 200050:
T4 (Thyroxine), Free, Serum
Useful For
The FT4 value combined with the TSH value gives a more accurate
picture of the thyroid status in patients with abnormal TBG levels such as
those who are pregnant or those who are receiving treatment with
estrogens, androgens, dilantin, or salicylates.
Special Instructions and Forms
Method Name
Chemiluminometric Immunoassay
See "Thyroid Function Algorithm" in Special Instructions.
Reporting Name
T4 (Thyroxine), Free, S
Ordering Mnemonic
FT4/NE
NE/FT4
Aliases
Free T4, Serum Performed at Mayo New England
FT4, Serum Performed at Mayo New England
Non-Protein Bound Tetraiodothyronine Performed at Mayo New <st1:place w:st=
T4 Free, Serum Performed at Mayo New England
Thyroxine, Free (FT4), Serum Performed at Mayo New England
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