Title 11 Flow Volume Loop.pdf ✅

both insp and exp limbs N A flattened s Unilateral Mainstens s bronchus obstruction Fixed upper airway Obstruction UAO flattening/truncation Eg-Tracheal Stenosis , Goitre, Tumors Abstr flow loop . flattening/truncation of envelope of * max more respirati #at ayan e Variable extrathoracic UA Eg : VC Palsy , Laryngomalacia, s OSA Syndrome Variable intrathoracic UA N Overall lungvolume and I Peak flow rate reduced . E : Retrosternalgot a marsa Tracheomalaria N Since - B: s Restrictive Parenchymal lung de Eg : /LD , Kyphosaliasis s NITCH HAT lib NM weakness appearance : Step descending