Answer :
Final answer:
Suction is used to reestablish negative pressure and inflate the lungs in surgery patients and trauma victims.
Explanation:
The indication for suction as per AV Suction CWI is to reestablish negative pressure and inflate the lungs in surgery patients and trauma victims whose lungs may have collapsed due to air entering the chest cavity, breaking the attachment between the lungs and the inside of the chest wall.
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