In emergency codes, what does Code Blue signify?

In emergency codes, Code Blue is universally recognized as a signal indicating a cardiac arrest situation. This code alerts medical staff that immediate resuscitation efforts are required for a patient who is unresponsive and not breathing. The term "Code Blue" is employed so that all personnel in a healthcare setting can quickly recognize the severity and urgency of the situation without causing alarm among patients and visitors.

The recognition of Code Blue allows for rapid mobilization of appropriate medical teams, such as those specialized in advanced life support, and efficient use of emergency equipment. By establishing a standardized terminology for emergencies, healthcare facilities can enhance their response efficiency and improve patient outcomes during critical scenarios such as cardiac arrest.

Other codes, such as those for OB emergencies, combative persons, or hospital lockdowns, serve different purposes and do not convey the same immediate need for resuscitation as Code Blue does for cardiac events.