Progesterone

You may be asked to stop taking medicines (including birth control pills) that contain Reference estrogen Opens New Window or progesterone, or both, for up to 4 weeks before having a progesterone test.

Tell your doctor if you have had a test that used a radioactive substance (tracer) within the last 7 days. Recent tests such as a thyroid scan or bone scan that used a radioactive tracer can interfere with the test results.

Let your doctor know the first day of your last menstrual period. If your bleeding pattern is light or begins with spotting, the first day is the day of heaviest bleeding.

Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. To help you understand the importance of this test, fill out the medical test information form (What is a Reference PDF Opens New Window document?).

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