Patent ID: 8517939

Claim:
A monitor/defibrillator instrument which may be operated in different ambient lighting conditions comprising: high voltage circuitry which produces a high voltage defibrillation pulse; circuitry which produces a measure of one or more patient bodily functions; a display, coupled to the circuitry, which displays the bodily function measure in numeric or graphical form; a display, coupled to the circuitry, which displays the bodily function measure in numeric or graphical form; a display map storage device which stores a first display map which causes the display of a bright bodily function measure against a dark background when selected during use of the monitoring instrument in an indoor setting of relatively low ambient light and a second display map which causes the display of a dark bodily function measure against a bright background when selected during use of the monitoring instrument in an outdoor setting of relatively high ambient light; a user control by which a user selects one of the display maps; and a display controller, coupled to the display and responsive to the user control, for setting the display to display the bodily function measure in accordance with a selected display map.