It has been a few days since that day Kakashi came in and fed Sam ramen.
Sam's injuries were completely healed at least everything besides some broken bones.
Kakashi was finally able to bring Sam back to his house to care for him.
Sam mostly slept but seemed to be okay.
In fact as Sam dreamt he would get a visit from his 'father' who taught him everything he needed to know about chakra and the ninja world and Justus.
Sam learned as much as he could while he was healing himself unknowingly.
Sam's 'father' told him he would be fully healed the next day.
Sam was so excited that when he woke up he grinned and told Kakashi he'd be healed fully by tomorrow.
Kakashi on the other hand, had no idea how that was possible and decided they would go to the hospital for a check up tomorrow to make sure with his own eyes.