Image transcription text9. How do you know when a patient needs oxygen? Spr. 22 10. What is atelectasis? Why are immobile andpost-operative patients (ie. patients who just had surgery) at risk for atelectasis and/or pneumonia (PNA)?What nursing interventions can help prevent these complications and promote or maintain adequ… Show more… Show more Health Science Science Nursing NUR 306 Share QuestionEmailCopy link Comments (0)