I would not be looking for the oxygen mask in the back seat, and it is likely that an AED machine is not in the trunk. Hopefully they do have a spare tire and a "can of air" to pump up a flat.
Hey, would Fix a Flat work on internal bleeding. No, that is Slime Tube for bleeding. Fix a flat is for oxygen ...
I'm just fooling — you never know who may be reading these posts!