Rule change on injury and blood

[BktBallRef]

Since this play was posted on McGriff's, mick and I have been discussing it.

"Player with blood or injury may remain in the game with a time out. Have a question. We had a situation the other night when player A1 was injured and was attended by the coach and trainer on the floor. After a 5 minute delay (they are still on the floor attending to player A1) it was deemed player A1 was fine and wanted to return to game. Coach then called time out. Player A1 returned to game. My question is this. Can a team take a long period of time to attend to player while they are on the floor. Then once player is fine, call time out and then they can return? I can find nothing one way or the other. Can you please help? Thanks"

What's your take?