Anaesthesia Machine used noninvasively to monitor an external chest compression during cardiopulmonary resuscitation is A Zoll depth synchronizer B Zoll strength sensor C Zoll pAO2 monitor D Zoll AED -plus automatic external defibrillator 💡 Explanation Machine used noninvasively to monitor an external chest compression during cardiopulmonary resuscitation is ✓ Correct Answer: D. Zoll AED -plus automatic external defibrillator