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.
Veins don't pop inside your fingers. When you crack your fingers it makes a popping sound, this is when you push a joint in your finger and the bones pull apart and the pressuâ¦re on the synovial fluid is reduced, bubbles form and quickly expand then burst making a pop sound. 1 person found this useful.