Estrogens

Estradiol, Estriol

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Hormone replacement therapy after menopause.
• Birth control pills, patches, or rings and other forms of hormonal birth control.
• Having a test that uses a radioactive substance, such as a bone scan, within 1 week before the test.
• Medicines, such as clomiphene (Serophene, Clomid) or steroids (for example, prednisone).
• High levels of sugar in the urine caused by diabetes.

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Author:	Maria G. Essig, MS, ELS Carrie Henley	Last Updated: August 6, 2007
Medical Review:	Patrice Burgess, MD - Family Medicine Kirtly Jones, MD - Obstetrics and Gynecology Andrew Swan, MD, CCFP, FCFP - Family Medicine
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