Describe a situation in which you have encountered a culturally-derived communication misunderstanding in a

Describe a situation in which you have encountered a culturally-derived communication misunderstanding in a healthcare setting with a patient, physician, colleague; supervisor or administrator and its outcome.  
What actions could you, in an advanced nursing role, implement to prevent culturally-derived miscommunications?
Are there ethical implications for not addressing cultural miscommunications? (Use fictional names and places. Choose a situation from the peer-reviewed literature if needed).