Compression of a 2.0-L manual resuscitator bag is not moving the patient's chest. Possible causes include which of the following?
1. The diaphragm valve is missing.
2. The mask seal is inadequate.
3. The oxygen level is too low.
4. The bag volume is too small.
5. The leaf valve is missing.
a. 2 and 3 c. 1, 2, and 5
b. 3 and 4 d. 1, 3, and 4
ANS: C
If the mask seal is inadequate the volume necessary to ventilate the patient will be inadequate, which will result in lack of chest movement. If the resuscitator bag is too small there is not enough volume to adequately ventilate the patient and the chest will not rise appropriately. If the leaf valve is missing the gas from the bag will not be directed to the patient and will therefore result in inadequate chest movement.
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