If you were driving and one of your passengers experienced a medical emergency, what would you do?

I saw an event the other day on the highway that made me wonder about this. Assume there is nothing you can do to help this individual. Since you’re already moving at a high rate of speed, would it make sense to continue on to the hospital as quickly as you can, or is it better to pull over, call 911, and wait for the ambulance? Or maybe even continue in the direction of the hospital and wait for the ambulance to catch up with you to make the transfer from your vehicle to theirs.