Press the clock adjust button on the back. The display will show 12h or 24h. Press and hold clock adjust button for about 2 seconds. Display will begin to flash. On the top right of unit there are two buttons that are labeled 'hour, min, sleep Use these to adjust the time.
A pneumatic compression pump is a basic component of intermittent pneumatic compression (IPC), a widely used technique that involves attaching an electrical air compression pump to an inflatable plastic garment that is placed over the affected limb.
Give the dispatcher your location, and notify him or her that you're going to perform CPR. If you're alone, put your phone on speaker mode so your hands are free to start compressions. If you have someone else with you, have him or her stay on the line while you do CPR on the victim.