what none of these discussions seem to take in to consideration is:
there was no power, the back up generators had failed, the batteries on the ventilators, monitor, iv pumps were exhausted.
there was no oxygen, the liquid oxygen system had been depleted and the back up tanks were near exhaustion - there was no way to get a delivery of medical gases to the hospitals.
there was no medications, the medication resources had been exhausted and after 4-days there appeared to be no chance of replenishment.
you have to think this all the way through and not over simplify what was going on in those days. everything from food, water and medication was being rationed. the helicopters flying overhead were not dropping supplies. there was nothing left to live on, much less support life!