The REEVUE measures the oxygen that the body consumes. Using this measurement it calculates a patient’s Resting Energy Expenditure (REE), commonly referred to as a Resting Metabolic Rate (RMR). Physicians can screen for abnormally low metabolic rates, teach energy balance, and pinpoint the precise caloric intake required for weight loss. Applications include obesity treatment, as well as treating obesity related diseases such as diabetes, dysmetabolic syndrome X, hypothyroidism, hyperthyroidism, hypertension, cardiovascular disease, and sleep apnea. Under strict laboratory protocol, the ReeVue can be used to measure BMR (Basal Metabolic Rate).