Murphy's eye, an opening on the distal side of an ET tube, allows ventilation to occur:
A) whether the tube is in the trachea or in the esophagus.
B) even if the tip of the tube is occluded by blood or mucus.
C) if the tube is inserted into the right mainstem bronchus.
D) even if the ET tube does not enter the patient's trachea fully.
Answer: B) even if the tip of the tube is occluded by blood or mucus.
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