Timing of the endometrial biopsy is important.

Biopsies must be collected in the luteal phase (days 20-25) of the ovulation cycle, 7-10 days after LH surge (6-10 days) following ovulation

The sample is then sent to either our South Carolina or Seattle, Washington laboratory. Results are available within 2 days after arrival in our testing facility. CiceroDx provides collection kits at no-charge to our customers. In the event a sample is collected without one of our kits available, please place the endometrial biopsy in a vial containing 10% formalin and contact us to arrange for shipment.​ A test request form is included with every collection kit. For additional Test Request Forms, Please call Customer Service at the number below.

Is Biopsy date dependent on Cycle?

Yes: Defining Your ReceptivaDx Biopsy Date Range:

Natural Cycle:
6-10 days after LH surge
7-10 days after ovulation occurs

Mock Cycle:
5-10 days after start of progesterone

Once collected, the sample is placed in a preservative (10% formalin vial) and is sent overnight via FedEx to our testing facility. Results are available typically with 3-4 business days.

Who is a candidate for ReceptivaDx testing?

Candidates include:

  • All women with unexplained infertility
  • Women who have failed one or more IVF cycles
  • Women who have experienced recurrent pregnancy loss
  • Women who cannot afford IVF or that have limited fertility coverage

CALL CUSTOMER SERVICE at 800-795-5385


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The ReceptivaDxTM Test was developed by CiceroDx in conjunction with Pathology Consultants, Inc. of Greenville, SC. Pathology Consultants, Inc. is a laboratory certified under the Clinical Laboratory Improvement Amendments (CLIA). As with other laboratory-developed tests, this testing service has not been cleared or approved by the US FDA or any other federal regulatory agencies. Data have not been submitted to or evaluated by Federal regulatory agencies and the test is not for sale as an In Vitro Diagnostic (IVD) in the US or the EU.
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