Ohodeoxia is a feature of

Answer- B. Hepatopulmonary syndromeOhodeoxia refeis to aerial desaturation noted when sitting uP as opposed to lying down.Conditions associated:A) Cardiac (intracardiac shunt)Atrial septal defect (ASD)Patent foramen ovale (PFO)PneumonectomyUsually associated with pulmonary hypeension or raised right atrial (RA) pressure (e.g. constrictive pericarditis, cardiac tamponade).B) Pulmonary (intrapulmonary right-to-left shunts)HepatopulmonarysyndromePulmonary diseaseCOPDPulmonary embolismC) Upper airway tumourAcute respiratory distress syndromeD) MiscellaneouscausesAutonomic neuropathyAcute respiratory distress syndrome (ARDS)