I waited 40 minutes for my abdominal ultrasound with full bladder (as requested)  it was cruel I arrived 15min before scheduled appointment which equals to waiting 1hour with full bladder! Technician said it due to other patients being late, so I have to suffer for other people who are late Ridiculous I will never go there for and ultrasound, it's unacceptable to let patients wait so long with full bladder. Also the toilet in ultrasound room restroom was dirty. 
CMC OUS