A new TSH assay. Just another technique or a useful test?
The immunoradiometric assay is a sensitive test for diagnosing thyroid dysfunction. It permits greater accuracy by measuring response of thyrotropin-producing cells of the pituitary to thyroxine (T4) as opposed to comparing circulating T4 to a range of values from healthy controls. The assay allows improved precision in establishing replacement and suppressive doses of hormone for thyroid disease.
Bansal
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Veterans Administration Medical Center, Davis Park, Providence, RI 02908.
D006801:Humans; D011863:Radioimmunoassay / Q000379:methods; D013959:Thyroid Diseases / Q000175:diagnosis / Q000188:drug therapy; D013972:Thyrotropin / Q000097:blood* / Q000378:metabolism / Q000627:therapeutic use
D013972:Thyrotropin