That's all we can achieve here , buying him or her a chance ! That's all we can do and sometimes , it's enough for this person to make it! Buy them as much time as possible which is by far better than panic or doing nothing.
On the ugly side of things , how many people died from a simple OD because the other people involved had no idea what to do ?
A little training and a whole lot of common sense can make all the difference in the world.
When putting all scenarios in what "COULD" go wrong can help putting together a simple "First-aid Kit " together. You don't need a PHD. to save a life , just neves of steel with common sense.!