A 65-year-old woman presents with increasing dyspnoea and orthopnoea. Chest X-ray shows pulmonary oedema. She has known HFrEF and is on guideline-directed therapy. What is the most appropriate acute treatment in the emergency department?AAdminister intravenous furosemide and provide supplemental oxygen, considering nitrates if blood pressure allowsBStart large-volume intravenous fluidsCStart high-dose beta-blockerDWithhold all diuretics to preserve renal functionEImmediate intubation in all patients with pulmonary oedemaCheck my answer