Polycystic ovary syndrome laboratory findings
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
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Overview
Measurement of the plasma levels of several hormones is helpful in supporting the diagnosis of PCOS and especially in excluding other disorders. Determining the LH/FSH ratio of 3:1 is virtually diagnostic of PCOS; however, a normal ratio does not exclude the diagnosis, as LH levels fluctuate widely throughout the course of a day. Other androgens are measured to screen for other virilizing adrenal tumors. Fasting blood glucose is measured to look for diabetes; screening for lipid abnormalities is also employed. Testosterone is measured to exclude a virilizing tumor. Prolactin is measured to exclude a prolactinoma. Thyroid-stimulating hormone (TSH) is measured to rule out hypothyroidism
Laboratory Findings
Electrolyte and Biomarker Studies
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