"Medical imaging"

I’ve had my ultrasound (pregnancy) appointments cancelled twice and changed once. I was then called to come in with 10 mins notice which thankfully I was able to make. My latest appointment for a scan was again cancelled (after being changed by the hospital), 5 hours before the appointment. Waited 3 days with no update as whether I can have another date set, was told to make other arrangements. I feel it is absolutely terrible service and I don’t think I should have to travel 400 km for it when I have been more than accommodating.