My Mother Displaced Rt Femora Sept.,29,2016. Why Would The Doctor

my mother displaced rt femora sept.,29,2016. why would the doctor cut her off all meds and acetaminophen 650mg saturday october 1,2016 and left in her room with no relief until they shipped her back home oct.4 in pm hours to me (caregiver,son) when i give her painkiller oxycontin CR 20mg that pain management issues her?????????