PCOS Lab Tests

To aid in a diagnosis of PCOS (polycystic ovary syndrome) or related disorders, a number of laboratory tests may be useful.

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Glucose and Insulin Tests

Abnormalities of blood sugar (serum glucose) and insulin are quite common in polycystic ovarian syndrome. There are at least four rather common lab measurements to assess blood sugar status and the possibility of insulin resistance.

  • Fasting glucose
  • Fasting insulin
  • Hemoglobin A1C (HbA1c)
  • Glucose tolerance test (GTT)

Click here to find out more about these important tests.

New Insulin Test Helps You Catch PCOS Problems Earlier

A newer lab test has come along, called the glucose tolerance/insulin response test, or GTIR. This test evaluates a sequential pattern between glucose (blood sugar) and insulin. The test has five possible patterns, which may reveal that you have undiagnosed insulin resistance. Since most women with polycystic ovarian syndrome have an issue with insulin resistance, this test is advisable.

Sex Steroid & Reproductive Hormone Tests

  • LH (luteinizing hormone)
  • FSH (follicle stimulating hormone)
  • LH/FSH ratio
  • 17alpha-hydroxyprogesterone
  • Estrogens
  • Testosterone - total and free
  • DHEAS (dehydroepiandrosterone sulfate)

Other Useful Tests

These tests are also useful in detecting problems areas associated with polycystic ovary disease.

  • SHBG (sex hormone binding globulin)
  • Prolactin
  • Melatonin
  • TSH (thyroid stimulating hormone)
  • Complete thyroid profile (TSH, free T4, free T3, rT3, thyroid autoantibodies)
  • Metabolic profile
  • Complete blood count with differential
  • Lipid profile (cholesterol, triglycerides)
  • Vitamin D
  • Cortisol

Additional tests may be appropriate, depending on your unique medical history and present health status.



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