Use the fоllоwing cаse tо аnswer questions 12 аnd 13: A physical therapist (PT) who is trained in deep in-line suctioning, is working on airway clearance with a patient who is mechanically ventilated. However, the patient is unable to effectively expel the excretions and will require deep in-line suctioning. To prevent infection from deep suctioning, the physical therapist must do which of the following?