What is the purpose of the side ports near the distal tip of a suction catheter?
A. to help regulate the vacuum pressure during suctioning
B. to prevent the catheter tip from tearing cells away from the tracheal mucosa
C. to facilitate seeing the suction catheter on a chest x-ray
D. to prevent damage to the cuff of the ETT
?ANS: B
A. Incorrect response: The hole at the tip of a suction catheter does not influence the vacuum pressure used for suctioning.
B. Correct response: In addition to facilitating the removal of secretions, the holes at the distal end of a suction catheter help prevent trachea mucosal damage. Without these side ports, the catheter tip would strip cells away mucosal tissues as suction is applied, and the catheter withdrawn.
C. Incorrect response: Under ordinary circumstances, a suction catheter is not inserted into the ETT when a chest x-ray is being taken.
D. Incorrect response: A suction catheter cannot damage an artificial airway.?
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