<span>Consider
the cement used for the foundation; the bricks and timber used for the
walls; and the shingles used for the roof. All of these are __________
in making the house.
A. Elements</span>
Answer:
inspect the CPR mask and make sure that the one-way valve is correctly in place.
Explanation:
Based on the information provided within the question it seems that the next logical step would be to inspect the CPR mask and make sure that the one-way valve is correctly in place. This valve allows oxygen to be pushed into the victim's lungs but does not pull the oxygen back through the valves, that is part of the chest compression's that the person performing the CPR needs to do.
