on the DUTCH blog

YES! Urine testing can be used to monitor transdermal estrogen creams or gels

By Mark Newman, MS April 1, 2019

In this blog, you will see the data that has led us to the following conclusions about monitoring transdermal estrogen: Serum and urine (DUTCH) testing…

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Monitoring patients on transdermal testosterone replacement

By Mark Newman, MS March 31, 2019

In our previous blog, “Yes! Urine Testing Can Be Used to Monitor Transdermal Estrogen Creams or Gels”, we concluded that transdermal estradiol is effectively monitored…

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Why Assessing Progesterone Is Better with DUTCH

By Mark Newman, MS March 30, 2019

In July of 2017, we had an excellent post from Dr. Schroeder about why we test cycling women within days 19-22 of their cycle. As…

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Is Cortisol causing your patient to struggle with sleep in the middle of the night?

By Carrie Jones, ND, MPH December 20, 2018

The DUTCH Plus now has the answer! When patients suffer from insomnia, the 5 salivary cortisol measurements on the DUTCH Plus may not be enough…

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Estrogen and the Aging Brain

By Clinical Consulting Team October 10, 2018

A growing body of research suggests estrogen levels throughout a woman’s life may influence her risk of developing Alzheimer’s disease. In this case, more estrogen…

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Metabolized Versus Free Cortisol: Understanding the Difference

By Carrie Jones, ND, MPH September 25, 2017

The DUTCH Test™ is well-recognized for its ease-of-collection, coupled with comprehensive reporting that is not available from other laboratories. The cortisol metabolites in the adrenal…

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What Does “Waking (A)” Represent in the Daily Free Cortisol Pattern?

By Carrie Jones, ND, MPH August 4, 2017

Is your patient interested in knowing what their cortisol levels are in the middle of the night? Do they suffer from insomnia or wake routinely…

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Why we test during days 19-22 of a 28-day cycle

By Elise Schroeder, ND July 10, 2017

A common question both practitioners and patients have is, when should I test my hormones? This depends, of course, on whether someone is having regular…

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Using the DUTCH Test® for Vaginal Atrophy

By Mark Newman, MS April 3, 2017

by Elise Schroeder, ND Vaginal atrophy is one of the top complaints among menopausal women and women experiencing estrogen deprivation therapy post breast cancer. Symptoms…

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The DUTCH Complete™ Now Includes an Oxidative Stress Marker

By Mark Newman, MS March 10, 2017

Precision Analytical Inc., is excited to announce the addition of a new biomarker, 8-Hydroxy-2-deoxyguanosine (8-OHdG), to the world leader in comprehensive hormone testing, the DUTCH…

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