Phatbrooke

So I went to my PCP yesturday and my doctor suggested that I have the lapband surgery do to my medical problems that I have recently been having. I was a little excited and nervous. I scheduled my appointment with the GI today. I was wondering if anyone could tell me all the procedures that come before having the Lapband, and what I will need to do before getting the surgery?? How long does it take from the day your dr first sent you to the GI doctor??? Thanks sooo much!!