What would happen if I were to have an accident (say a broken leg), and was offered nitrous oxide for pain relief? I know it can deplete B12 stores but is that still an issue when receiving B12 injections? Would it be a case of asking for alternative pain relief or would it just require extra B12 to top it up again?
This occurred to me when watching that Ambulance programme on the TV. I did think if I was in total agony I would be inclined to take the gas and damn the consequences!- but what would be the correct plan for such an event?