Hi there, mine was about 5 weeks 5 days and lasted about 1 hour. Basically filling in the huge form of medical history etc, working out dates, and going through what would happen next etc.
Very useful, got the bounty pack and all the literature to read through.
Hope this helps! Oh, and she asked about DH's family medical history too - I was lucky, had mine with me, so make sure you know stuff just in case!