<prompt> Side effects of hyperbaric oxygen therapy are all exceptAbsorption atelectasisIncreased pulmonary complianceDecreased vital capacityEndothelial damage  <response>: Answer- B. Increased pulmonary complianceCNS toxicity Be effect :- The acute oxygen toxicity has predominant CNS effect.Pulmonary toxicity Smith effect :- The chrronic oxygen toxicity has predominant pulmonary effect.Ocular effects :- Retrolental fibroplasia Retinopathy of prematurity. 