Blog — Menstrual Cycle Mapping

Periods: The Miracle of Bleeding for 7 Days Without Dying.

Posted by Ben White on

By Dr Alison McAllister, ZRT Laboratory ZRT is a company made up mostly of women. It’s not that we don’t have men working here, but 80% of our employees happen to be women. A combination of a company mostly of women, working in the health field, and having gone to medical school which tends to take away that filter that says “perhaps certain topics are off limits,” can lead to hilarious conversations like our one today on the favorite of all lady topics – periods! I am going to give you an inner look at a woman’s conversation about this...

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When to Choose Menstrual Cycle Mapping vs Fertility Testing

Posted by Ben White on

ZRT Laboratory introduced the Fertility Profile to assist women in identifying possible hormonal causes of infertility. More recently ZRT launched the Menstrual Cycle Mapping (MCM) test that allows women to map time points throughout their menstrual cycle, measuring levels of estrogen, progesterone and luteinizing hormone (LH). Since the MCM test was introduced there has been some confusion as to which test is best to evaluate fertility/infertility. The aim of this blog is to clarify the differences between the two tests and when best to use each. Menstrual Cycle Mapping The MCM profile measures estrone-3-glucuronide (E1G), pregnanediol-3-glucuronide (PDG) and luteinizing hormone...

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