Answer:
1. Please check with your service to see if the equipment carried allows for ETC02 readings with your BVM circuit. It is possible with the right equipment. Note that the filter should be placed between the mask and the sensor. In order from patient: Mask – Filter – Sensor – Bag.
2. If you are at the stage of assisting ventilations for a COPD patient per the Respiratory Failure Standard, and unable to titrate your oxygen, there is minimal harm of the potential of hypercapnia (suppressing the patient’s respiratory drive), since you are already ventilating for them.