Hello, two questions. 1. If I am bagging for a patient in respiratory distress but they do not have a supraglottic airway in, how would I measure their end tidal? Will just attaching my end tidal to the bvm without that same seal provide an accurate reading? 2. If I am assisting ventilations via BVM for a COPD patient who is in respiratory failure should I be concerned about their SpO2 going up to 100? Our current BVM’s don’t have a way to adjust how oxygen they are getting. I don’t want to make my COPD patients hypercapnic by delivering too much O2.