This pathology centre will make an appointment for your test. I went in January 2014 for a 2 hour glucose tolerance test and they were fantastic. I skipped the queue because I had made an appointment, the staff were very professional and really personable. They even checked in on me regularly to confirm I wasn't too nauseous and offered me water while I waited. They will accept any provider's pathology form too and they bulk billed me at my doctor's request. Very happy.