Researchers tested the risk of ignition on a mannequin dressed with a head drape and found several significant risk factors: higher oxygen flow rate; the presence and application of the head drape; and not utilizing the warming blanket blower.
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Researchers suggested cutting a fenestration in the drape around the endotracheal tube to vent the drape; using a blanket blower; and/or having the anesthesia care provider repeatedly lift the head drape to minimize the amount of trapped gases.
Read the study about warmed head drapes.
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