Hi Amy, my app took around 45 mins, they discuss your past medical history with you, take your blood pressure and oxygen saturations, you have a few more forms to complete and they also go through your procedure and after care! You also have your pre op photos taken. My nurse was lovely, she really explained things well! They also swab you to see if you carry MRSA and I had bloods taken due to previous anaemia when I was pregnant. I also booked my first 2 post op appointments! Hope this helps xx