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A handheld mask with an attached self-inflating bag, which permits air to be forced into the lungs each time it is squeezed. Manual resuscitators can be difficult to use properly. Complications can arise if the mask does not seal the patient's face properly, if excessive pressure is used during ventilation, if inadequate supplemental oxygen is provided, or if the rate or volume of ventilations is excessive or insufficient to inflate the lungs and remove carbon dioxide.
See also: resuscitator
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