Surgical opinion required for definitive management (i.e. cholecystectomy, cholecystostomy)
Bile for anaerobic C&S should be obtained unless mild uncomplicated acute cholecystitis
All of the following:
A non pre-existent infection occurring ≥ 48 hours after hospital admission and/or within 90 days of discharge from a health care facility or regular outpatient visits (eg. dialysis or chemotherapy).