Evaluate postmenopausal vaginal bleeding due to peripheral conversion of androgenic steroids. Increased estrone levels may be associated with increased levels of circulating androgens and their subsequent peripheral conversion.
Serum or plasma
Red-top tube, gel-barrier tube, or lavender-top (EDTA) tube
No isotopes administered 24 hours prior to venipuncture.
If a red-top tube or lavender-top tube is used, transfer separated serum or plasma to a plastic transport tube.
Gross hemolysis; recently administered radioisotopes; lipemia; icteric specimen
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Tulsa, Oklahoma 74136