A patient monitoring system comprising: a patient monitoring device comprising a first display (300; 856; 1511; 1611; 1705; 1802; 2005) and configured to communicate with one or more patient monitors (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1025) and display a first set of physiological parameters on the first display (300; 856; 1511; 1611; 1705; 1802; 2005); and a first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) configured to communicate with the patient monitoring device, the first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) having a second display (210; 1591; 1691; 2015), the first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) configured to provide patient monitoring functionality with respect to a second set of physiological parameters; wherein when the first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) is in communication with the patient monitoring device, the first display (300; 856; 1511; 1611; 1705; 1802; 2005) and the second display (210; 1591; 1691; 2015) display at least some measurements of the first set of physiological parameters and at least some measurements of the second set of physiological parameters, wherein the at least some measurements comprise at least one of a waveform and a numerical value; wherein a user can select which measurements of either or both of the first set of physiological parameters and the second set of physiological parameters are displayed on or spanned across the first display (300; 856; 1511; 1611; 1705; 1802; 2005) and the second display (210; 1591; 1691; 2015). a patient monitoring device comprising a first display (300; 856; 1511; 1611; 1705; 1802; 2005) and configured to communicate with one or more patient monitors (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1025) and display a first set of physiological parameters on the first display (300; 856; 1511; 1611; 1705; 1802; 2005); and a first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) configured to communicate with the patient monitoring device, the first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) having a second display (210; 1591; 1691; 2015), the first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) configured to provide patient monitoring functionality with respect to a second set of physiological parameters; wherein when the first patient monitor (200; 602; 810; 1200; 1410; 1590; 1690; 1740; 1920; 1925) is in communication with the patient monitoring device, the first display (300; 856; 1511; 1611; 1705; 1802; 2005) and the second display (210; 1591; 1691; 2015) display at least some measurements of the first set of physiological parameters and at least some measurements of the second set of physiological parameters, wherein the at least some measurements comprise at least one of a waveform and a numerical value; wherein a user can select which measurements of either or both of the first set of physiological parameters and the second set of physiological parameters are displayed on or spanned across the first display (300; 856; 1511; 1611; 1705; 1802; 2005) and the second display (210; 1591; 1691; 2015).