✔ 最佳答案
NOTHING has changed for Covid-19.
Allowing compression only CPR is a few years old.
Recommending a mask with a 1 way valve for rescue breathing had been standard for even longer.
I ask this question at a work training session and the manager could not give me an answer he said he would look into it anybody here in the know?
If that is true, the manager hasn't been certified in CPR for several years.