A 60-year-old man presents with large-volume haematemesis and melaena. He is pale, sweaty and confused with BP 85/50 mmHg and pulse 120 bpm. What is the most appropriate immediate management?AArrange urgent outpatient endoscopy within 2 weeksBGive a proton pump inhibitor and discharge once symptoms settleCStart high-flow oxygen, establish two large-bore intravenous cannulas, begin fluid resuscitation and arrange urgent endoscopy after stabilisationDInsert a nasogastric tube and delay fluids to avoid obscuring endoscopyEStart oral iron therapy and book a colonoscopyCheck my answer