What precautions are taken to prevent mixing up of the semen and oocyte samples in the laboratory?
Semen samples of every male patient are washed in separate tubes that are labelled with their first and second names at every step. Oocytes retrieved after ovum pick-up are stored in disposable plastic petridishes labelled with the female patient’s name and surname and the stage of the oocyte or embryo that results in culture. Throughout the procedure honest and accurate identification of the specimen is maintained.