I think it took about a week for them to attached this this to PR file , when my mom and dad completed the Super Visa Medical and they got that receipt i used a webform and submitted it . i think web form is slow but they link the Medical result automatically . May take about a week . I would suggest you to submit the web form with the Receipt that they get after the medical is done and they will use that result for the PR application too .My I know how your parents Super visa Medical Accepted for PR file? Did you email them and how long did IRCC take time to accept? My mom just completed her medical for visitor record extension 2 days before the PR medical request, I don't think it's needed to do it twice just for the sake of it. I wrote an explanation letter through web form but on PR file the medical is still not received yet.