Anaesthesia What is the ratio of chest compressions and breaths when a lone person is giving cardiopulmonary resuscitation? A 10:01 B 15:01 C 30:01:00 D 30:02:00 💡 Explanation What is the ratio of chest compressions and breaths when a lone person is giving cardiopulmonary resuscitation? ✓ Correct Answer: D. 30:02:00