<prompt> At high altitude of around 3000 meters, a person complains of breathlessness. All of the following can be used for management EXCEPT:Intravenous digoxinOxygen consumptionImmediate descentAcetazolamide  <response>: High altitude pulmonary edemaHigh altitude cerebral edemaacute mountain sickness Immediate descent to at least 2000 feet If possible Rest, reclined with head elevation O2 supplementation SpO2 90 Nifedipine or sildenafil Immediate descent to at least 2000 feet If possible Rest, reclined with head elevation Mild - Acetazolamide ModerateSevere- Dexamethasone 