Every computer entered a bluescreen loop. We are dependent on Epic for placing orders, for nursing staff to know what needs to be done, for viewing records, for transmitting and interpreting radiology machines. It's how we know the current state of the department and where each patient (out of 50+ people we are simultaneously treating) is at. Our equipment still works but we're flying blind and having to shout orders at each other and have no way to send radiology images to other doctors for consultation.