I am concerned about my wife who has had insertion of arteriovenous fistula 51.5 hours ago. She was prescribed Tylenol #3 for pain. She tolerated post op well at home but for pain. She took the Rx as directed through this morning, she vomited twice since 6 am PDT. She has not had any dialysis, her kidney function is approximately 12 %. She ate consistent with a low sodium diet since the surgery.