text_1: 55-year-old woman.  This lady has epigastric pain and gallbladder symptoms.  How do you assess her gallbladder function when you don't see stones on the ultrasound?  Can a nonfunctioning gallbladder cause symptoms or do you only get symptoms if you have stones?
text_2: Can a nonfunctioning gallbladder cause symptoms or do you only get symptoms if you have stones?