Calhoun is a surprisingly good nurse. Whenever someone is sick, she can diagnose them, get them the right medication and knows what to do every time. And she won’t leave their bedside until they are in tip-top condition.
She even stayed with Vanellope while she had a 24 hour virus. She didn’t fall asleep once.
This is a deleted song from the Frozen soundtrack, that had it stayed in the movie, would have replaced “For the First Time in Forever (Reprise)”.
I left the songwriter’s commentary at the beginning to get a better feel of it. Should be easy to identify who is who by the lyrics in the song.