Approach to Platypnea-Orthodeoxia Syndrome Platypnea: dyspnea when sitting or standing Orthodeoxia: sPO2 drops > 5% in upright position, normalization in lying position #POS #Platypnea #Orthodeoxia #Syndrome #diagnosis #differential #causes
Internal Medicine Resident at BIDMC - https://twitter.com/nsrosenberg