Treatment for atelectasis due to which o2 levels are low?

Need more expansion: Atalectasis happens when the lungs aren't expanding enough to allow the alveoli to open adequately. The proper function of alveoli is needed to take in enough and release enough carbon dioxide. This is common to see after a surgery, for example. Your doctor may recommend special breathing exercises - or ventilator adjustments - to help. LGromkoMD