T4 (Thyroxine), Total Only, Serum
NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.
Monitoring treatment with synthetic hormones (synthetic triiodothyronine will cause a low total thyroxine: T4)
Monitoring treatment of hyperthyroidism with thiouracil and other antithyroid drugs
Total T4 levels offer a good index of thyroid function when the thyroid-binding globulin is normal and nonthyroidal illness is not present.
Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.
See Thyroid Function Ordering Algorithm in Special Instructions.
Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
T4 Total Only, S MMLNE only
Thyroxine (ORDER 8724 if not specified)
Thyroxine (T4), Total & Free ORDER 8684