question: my mom obese 45 year old mother of four complains of pain in her right upper quadrant. She reports that nausea and vomiting often accompany the pain, which is especially noticeable when she eats a meal with high fat content. She added that she has a fever. Physical examination reveals a febrile, overweight woman wit involuntary guarding in the RUQ and cessation of inspiration on palpation of this area. what to do Dr?