Signs suggestive of cardiogenic pulmonary edema include orthopnea, bilateral crackles or wheezing (patients over 70 years without known asthma), edema of the lower limbs, and gallop sound on heart auscultation. The evolution of these signs makes it particularly possible to manage the response to the treatment. The severity of cardiogenic pulmonary edema depends on several factors such as etiology (ECG analysis and chest pain assessment for acute coronary syndrome), hemodynamic status (blood pressure, heart rate), effect on hematosis (cyanosis, oxygen saturation), and fatigue (low respiratory rate with persistent cardiogenic pulmonary edema signs). The respiratory rate represents a simple clinical feature that can be used to quantify dyspnea (sign of severity if greater than 30 per minute in adults) and then follow its evolution (improvement, exhaustion). Disorders of consciousness can testify to the severity of the hemodynamic state and/or exhaustion.