Hey Belfie- good luck with your appointment today. In reguards to questions.... I asked loads of them at Rebeccas u/s because I knew all about DDH as Olivia was in a Pavlik Harness for a good while, so I am up with the lingo so to speak. I think you should ask if the hip is in place. Does the cup cover the ball, is the ball formed, is the cup formed, is the hip dislocatable, what is the coverage in percentage? Thats the basic terms for it. They are looking to see if the hip is formed properly and sitting in the correct position and if it can come out easily or not.
As for results, I went through public at Monash and we get our results a week later at the orthopaed clinic.
For us its been very different this time around. When Olivia had her first u/s they didnt say much....basically her hips werent formed and they didnt want to give us bad news!!!.....we waited a week for that!
With Rebecca, because i knew what to look for and they knew my first had hip dysplasia, they were open and honest with me. Rebecca has a rounding of her left hip cup, so we have to go back next week for another u/s and then followup orthopead review.

All the best....sorry if I have rambled...lack of sleep!!!