ICU patient

during my cardio prac in ICU, i was looking after a patient who'd had a CABG and many complications since the operation including the bypass graft becoming blocked and multiple organ failure. he was ventilated for the first few days in ICU then had a trachi inserted to help maintain the airway and keep him ventilted. he was on a cocktail of drugs of which one was warfarin so the site around his trachi was very oozy and the nurses did not change the dressings as they were hoping that it would eventually clot and by continually changing the dressing, the bleeding increased. the patient improved enough to start to SOOB for a few hours everyday, the patient started off being a slide transfer but as the weeks progressed we progressed to s stand transfer. the transfer required 5 peoples assistance to watch the lines and assist the patient. since it was my patient i'd been in charge of allocating people to the various jobs and positions and controlling the transfer - which had all previously run smoothly. it was my last day of prac, we'd all just been given feedback and it was time to go home. the patient mentioned above was about to be transfered back to bed after a day of SOOB when he wrote a note (as he could not speak due to the trachi) asking if he could please stand up and do the transfer as he was really proud of his progress. one of the other physio students on prac offered to help me so we decided to do it before we left. the nurse was in charge of the lines (ECG, IDC, ventilator tubing, arterial line), 1 orderly was in charge of moving the chair away and the bed in behind the patient, another was assisting the other physio student and i with the patient. the patient stood up and as he stepped across to the bed, the whole trachi tubing came out of his throat, the nurse who was watching the tubing didnt notice and as we sat him down i felt the tubing blowing air down my arm. i panicked, unsure of whether to attempt to put the tubing back into the gaoping hole in his neck as the now had not been ventiltated for nearly a minute. i shouted out for a doctor and luckily bein in ICU there are always doctors around whilst the other physio student tried to get the patient to breathe independently. the doctor came in and decided that the patient should be put on NIV and to see how he went overnight. he said the patient was becoming too dependent on the ventilator and it was time for the patient to "sink or swim" as because they had been trying to wean him off it for a few days and we'd just gone and "skipped a few steps". we had to fill out an AIMS form which was really scary as looking back on what happened, none of us could pin point how, why or when it happened and we had all the bases covered for the transfer so if i had to do it again, i'd do it the same way. this was a horrible way to end a great prac, espacially as i'd not be able to see the outcome for the patient. my supervisor sent me an email saying that the patient was able to maintain his sats on niv and would probably end up leaving hospital a lot earlier than if the incident hadnt occurred. i learnt from this incident that even though there were so many people helping out with the patient and it had been done successfully so many times before, that you cant control everything and things still go wrong - constant vigilance in required when working with patients!