The method of delivering chest compressions remains the same, as does the rate (at least 100 per minute). It is hoped that the use of compression-only delivery will increase the chances of the lay public delivering CPR.
Much like when crack your knuckles, loud popping noises from your knees are most likely caused by what is called cavitation. Cavitation results from a change in joint pressure that allows carbon dioxide, which is normally dissolved in your joint fluidâa.k.a.
This is very common and can be for a number of reasons. You will have a moderate amount of swelling in your knee following surgery and this can cause the structures in your joint including your knee cap to move differently and sometimes this will produce a clicking sound.