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ZRT Laboratory

Dried Urine GCMS Estrogen Hormone Metabolites

ZRT Laboratory

Sample type: Urine

Requires fasting: No

At home test


Details

Formerly the Estrogen Essential panel, this panel provides a measure of how a patient is metabolizing estrogens.


  • 4-Hydroxyestrone
  • Estriol
  • 16-Hydroxyestrone
  • Estradiol, Urine
  • Estrone, Urine
  • 2-methoxyestrone (2-m-e1)
  • 4-methoxyestrone (4-m-e1)
  • 2-hydroxyestradiol (2-oh-e2)
  • 4-hydroxyestradiol (4-oh-e2)
  • 2-methoxyestradiol (2-m-e2)
  • 4-methoxyestradiol (4-m-e2)
  • 2-hydroxyestrone (2-oh-e1)
  • Creatinine (Urine)
  • Bisphenol A

Estimated days for results: Results should arrive 8-10 business days after the lab receives samples.


8–10 business days


  • Women's health
  • Hormones
  • Men's health

Before You Start
  • Read the provided test collection instructions carefully.
  • Watch the test collection video.
  • If you are a man, child, or non-menstruating woman, you can collect your sample at any time.
  • If you are a menstruating woman,
    • Regular cycles: Collect on Day 19, 20, or 21 of your cycle (where Day 1 is the first day of your period).
    • Irregular cycles: Collect 5 days before your period starts.
    • Unpredictable cycles: Collect any non-bleeding day.
  • Talk to your healthcare provider if you are taking steroids. They may affect test results.

3 Days Before Collection
  • DO NOT use vaginal hormones.
  • DO NOT take biotin/vitamin B7.

Day of Collection
  • Avoid the following activities until you have collected your first sample.
    • Eating
    • Drinking
    • Taking vitamins or supplements
    • Taking medications, including morning hormone doses
  • Avoid taking evening hormone doses until you have collected all samples.
  • DO NOT drink more than 8 oz of water in the hour before each sample collection.

State restrictions:

Patient can't order this test if they are located in Puerto Rico, or New York

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