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 Had the trach cannula changed yesterday. All went well, except the nurse forgot to connect me to the ventilator after the job was done. It only took a minute or so to catch her attention and signal about the problem, but boy did it feel long. 
 Doesn't ventilator have an alarm?  
 I am wondering what could be a mitigation to prevent such mistakes. Probably a smart watch/ring with oxygenation and pulse measurements is able to notify.