Basic Life Support (BLS) refers to the medical care given to a person in an emergency, particularly in situations where their life is at risk. There are various terms that can be used interchangeably with BLS, such as emergency medical care, first aid, or pre-hospital emergency care. These synonyms describe the same essential actions, which include cardiopulmonary resuscitation (CPR), the use of automated external defibrillators (AEDs), and basic wound care. The goal of BLS is to provide immediate care to preserve vital functions until more advanced medical care is available. Knowing synonyms for BLS can help individuals understand the importance of emergency medical care and be prepared to respond to critical situations.