[jacquesm]

More to the point: almost every safety device installed in medical systems can be over-ridden during emergencies.

So even if you can't normally access certain records or data, if you claim it is an emergency you suddenly can!

[ska]

This isn't true of most hardware devices at least - there are emergency shutdown procedures etc. But, to the original question, there isn't an "emergency override" that would let me change the dose or override the interlocks on received dose.

There are sometimes calibration modes or research keys that let you do odd things to, say, imaging machines. But there are also processes in place to disallow clinical use.