calla sees her 10 year old sister choking.
she does the five-and-five approach. what did calla do?
1. she did five chest compressions and then five rescue breaths.
2.she did five rescue breaths and then five chest compressions.
3.she did five blows on the back and then five abdominal thrusts.
4.she did five abdominal thrusts and then five blows on the back