A respiratory therapist is about to begin their shift with t…

A respiratory therapist is about to begin their shift with the following patient list and orders:   Patient 1 : SVN with 2.5 mg albuterol Q4 and PRN  Patient 2 : O2 via Simple oxygen mask at 10 lpm Patient 3 : Intubated patient on continuous mechanical ventilation Patient 4 : Chest physiotherapy (CPT) Q6    Which patient should be assessed first?