Injured Player: When Do You Stop Play?

[crazy voyager]

If they set up their offense. I let them end it. How ever, I have had teams who simply stop playing offense. Then I stop play, it's there choice. But unless the player is badly injured or as it says, needs protecting, I let them play things out...
If they take a shot, grabs the offensive rebound, and sets up again I will call it dead though (the play has been completed, so call it dead, no need to start a new offensive set).