Vital Signs
Vital signs are basic signs that show how well a person's body is working, such as breathing, pulse, alertness, and skin changes. Learn what to watch for.
Tag breathing
Breathing
Breathing means moving air in and out of the lungs. Learn what normal and abnormal breathing can look like in first aid and what to do next.
Airway
Airway means the path air takes into and out of the lungs. Learn what the airway is, why it matters in first aid, and which airway pages to use next.