big glasgow girl

HI - new to this & hoping for some advice. I've been told that I am being referred to the weight loss surgery team for assessment for surgery as part of the NHS weigh management programme in Scotland Does anyone know what types of questions they ask to assess me? and what would lead them to decline me for surgery? Been in the programme for 2 years now & really want the surgery so don't want to mess up at the final hurdle! thanks everyone in advance, Michelle