We have a patient who is a nun who lives with her community. She had an overnight oximetry done on March 15th, but the doctor didn't order O2 for her until May 13th. The patient is elderly, and apparently the facility didn't follow up with the doctor. Not sure why the doctor let it go for 2 months either.
Anyway, is my only recourse to get the doctor to order another overnight oximetry? She only desats during sleep, so she doesn't qualify otherwise. Will Medicare cover another test?

Any guidance is most welcome!
Thanks!