sign in some organizations, such as the U.S. Veterans Affairs. Pain is measured on a 0–⁠10 pain scale based on subjective patient reporting and may be unreliable. Some studies show that recording pain routinely may not change management. Menstrual cycle Oxygen saturation (as measured by pulse oximetry) Blood glucose level Sixth vital signs There is no standard "sixth vital sign"; its use is more informal and discipline-dependent. End-tidal Functional status Shortness of breath Gait speed Delirium Variations by age Children and infants have respiratory and heart rates that are faster than those of adults as shown in the following table : Monitoring Monitoring of vital parameters most commonly includes at least blood pressure and heart rate, and preferably also pulse oximetry and respiratory rate. Multimodal monitors that simultaneously measure and display the relevant vital parameters are commonly integrated into the bedside monitors in intensive care units, and the anesthetic machines in operating rooms. These allow for continuous monitoring of a patient, with medical staff being continuously informed of the changes in the general condition of a patient. While monitoring has traditionally been done by nurses and doctors, a number of companies are developing devices that can be used by consumers themselves. These include Cherish Health, Scanadu and Azoi. See also Biotelemetry Medical record Remote Patient Monitoring References Medical signs Physical examination fr:Signes vitaux