Abstract: A medical treatment system includes a medical treatment device for monitoring and providing treatment to a patient and a companion device communicatively coupled to the medical treatment device. The medical treatment device may display case information including physiological information visually rendered from physiological sensor inputs in a first display format and transmit the case information and medical data to the companion device. The companion device may include a device interface having a display screen to accept user input instructions for the medical treatment device during a medical event. The companion device may process the case information and medical data received from the medical treatment device and also cause display, at the device interface, of multiple data display views in which each of the display views is selectable via a respective display view selection portion of the device interface.