A 59-year-old man presents with melaena and dizziness. He admits to long-term NSAID use for osteoarthritis. Observations: BP 92/58 mmHg, pulse 112 beats/min, RR 22/min, capillary refill 4 seconds. What is the most appropriate immediate management?AResuscitate with intravenous crystalloids and arrange urgent upper GI endoscopyBArrange outpatient upper GI endoscopy within 2 weeksCStart a proton pump inhibitor and review in 48 hoursDCommence oral iron and stool occult blood testingEDischarge with advice to stop NSAIDs and see GPCheck my answer