A 58-year-old man presents with large-volume haematemesis and melena. He is pale, diaphoretic, and hypotensive at 88/50 mm Hg, heart rate 120 beats/min. What is the most appropriate immediate management step?AUrgent upper endoscopy without resuscitationBRapid intravenous crystalloid resuscitation and blood products as needed, followed by early endoscopyCStart high-dose oral proton pump inhibitor and discharge homeDNasogastric lavage onlyEImmediate elective beta-blocker therapyCheck my answer