A 72-year-old man with a percutaneous tracheostomy in situ on ICU day 21 develops sudden massive haemorrhage from the tracheostomy stoma. Bright red blood is pulsating from around the tube. What is the most likely diagnosis and immediate action?AMinor granulation tissue bleeding - apply silver nitrateBTracheo-innominate artery fistula - hyperinflate the tracheostomy cuff and apply digital pressure anteriorly through the stoma while calling for emergency vascular surgeryCPosterior tracheal wall erosion into the oesophagusDCoagulopathy - administer FFP and plateletsETracheostomy site infection with erosion of a small vesselCheck my answer