New answers tagged availability
This mechanism is now made mandatory by law in France (lookup PGSSI-S, in French). I don't know about other states, but you should check the relevant legislation.
Some automatic blood bank audit and release systems have a 'break glass' feature where the fridge can be accessed without having to follow the normal process, which might be; input request, scan patient record identifier, bidirectional interface with lab system looks up blood type and the blood unit is scanned on removal from the fridge... It's very useful ...
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