A 29-year-old man with known ulcerative colitis presents with six bloody diarrhoeal stools per day, crampy abdominal pain and mild tachycardia. He is afebrile and haemoglobin is normal. What is the most appropriate initial management?AStart oral Mesalazine alone and manage as outpatientBStart high-dose oral Prednisolone and arrange urgent colonoscopyCAdmit for intravenous HydrocortisoneDStart Infliximab infusion immediatelyEOffer emergency subtotal colectomyCheck my answer