Review of methods used to quantitatively measure the performance of embryo culture media for quality control monitoring.

Methodology is described for monitoring the performance of vitrified donor oocytes. Summary data is listed and compared for multiple donor oocyte banks.

Oocyte and embryo yield after IVF stimulation is discussed and graphed for different AMH values. ICSI and conventional insemination are compared.

The need for uniform embryo labeling is discussed and a proposed solution is given.

A method for quality control monitoring of embryo incubators is discussed and demonstrated. No under performing incubators were discovered.

Increased pregnancy rates after euploid embryo transfers are seen after a transition to more use of modified natural frozen embryo transfer protocols (without letrozole).

Overall there is about a 30-40% loss of reproductive potential when embryos are thawed, biopsied for PGT-A, and vitrified again.