The ZRT Laboratory Blog

The ZRT Blog is an extensive resource for patients and health care providers searching for health and hormone testing information. Here, you can read about ZRT’s cutting edge research, advances in testing, wellness advice, and health industry highlights.

How Reference Ranges Determine a "Normal" Lab Test Result

Posted by Margaret Groves on Friday, 13 November

normal.chalkboard.jpgCLIA-certified testing laboratories such as ZRT are required to provide reference ranges as an aid to interpretation of test results.

Ideally, reference ranges provide the expected range of values for a healthy population. When methodology and equipment is identical for testing a particular analyte among different laboratories, reference ranges for that analyte should be the same.

However, when methodologies or equipment for the same test differ somewhat from lab to lab, each lab must provide its own reference range established with its own methods. These ranges are usually very close, but may differ slightly depending on method. An example would be testing testosterone in blood or saliva by extraction and LC-mass spectrometry vs. direct testing by immunoassay.

Read More

Breast Cancer & Natural Hormone Therapy - A Survivor's Story

Posted by Tina Mattern on Thursday, 29 October

tina.mattern_bubbles.jpg
ZRT guest blogger Tina Mattern

As part of National Breast Cancer Awareness Month, and to broaden the conversation about breast health, ZRT Lab invited several breast cancer survivors to tell their stories. 

When I was diagnosed with breast cancer in September of 1999, I was convinced that my life as I'd known it was never going to be the same. 

I knew, of course, that many women survive, but I also knew that in spite of treatment, 1 in 3 will still die. These were horrifying statistics.

The only treatment options that were being thrust on me were every bit as frightening: Mastectomy or Radiation or Chemotherapy and a nightmarish hormone-blocking drug called Tamoxifen, which would increase my risk of developing uterine cancer by 60%. 

Each one of these treatments had the potential to ultimately cause death in its own right. How could I possibly choose between them? It seemed like there wasn't an acceptable solution...I was going to suffer, no matter what I chose.

Read More

Channeling My Breast Cancer Experience to Create Change

Posted by Molly Lindquist on Thursday, 15 October

ZRT guest blogger Molly Lindquist

As part of National Breast Cancer Awareness Month, and to broaden the conversation about breast health, ZRT Lab invited several breast cancer survivors to tell their stories. 

This month is my 4-year “cancerversary.”

It has been four years since I heard the words, “You have cancer.” And yet I can remember that day as though it was yesterday.

My story really starts in the shower in October of 2011. I can still feel the warm water rinsing off the exhaustion of life, which for me at that time meant chasing after almost three- and almost five-year-old daughters. Eyes closed, preparing to embrace a new day of chaos with the little ones as a stay-at-home mom, soaking in those last few minutes of quiet before the day officially began.

So when I felt a lumpy patch of breast tissue near my right armpit just as I was getting ready to turn off the water, it felt like I was ripped out of my steamy reverie. We’ve all had that sick feeling in the pit of our stomach, that feeling when we know something is not quite right – our gut instinct. And that is what I felt on that October morning, the gut instinct that this lumpy tissue was not good.

Read More

The Ultimate Hormone Balancing Guidebook Review

Posted by Candace Burch on Sunday, 22 March

Hormone Balance Guidebook review

As scientific researchers, practitioners and patients bear witness to the increasing evidence of hormone dysfunction in today’s society, Dr. Cobi Slater’s Ultimate Hormone Balancing Guidebook couldn’t come at a better time. Her premise throughout this illuminating book is that the real cause behind the plethora of symptoms plaguing modern adults of all ages can be linked to imbalances within the hormonal cascade.

Read More