I go to a place with a radiologist in the building. They do my mammograms then the ultra sound and when I'm taken to the room, there's a slot on the door. The RN will say 'Here's your Happy Letter'! Before you see the Doc, you already know 'I'm happy to inform you that there has been no change in your mammogram or ultrasound .........'
I'd have heart failure if I had to wait 3 weeks.