Nurse of Canada especially Alberta?

Few years ago, when I was pregnant of 35 weeks, I had awful bleeding so my doctor wanted me to stay and bed rest in the hospital in Alberta until 37 weeks (scheduled for C section) so they could easily monitor me and the baby. However I had bleeding again in the middle of the night in the bathroom on 36weeks and 5days of pregnancy. I pushed that red button near the toilet seat or was it a pulled string one, I dont remember, and then about 6-7 nurses buzzed running in to my room and bathroom to help me. It was amazing of them ❤️

I am just curious, what kind of code the nurses get out there when that emergency button is on from the maternity floor? Thanks!