During a secondary survey, what does the 'E' in DCAP-BTLS refer to?

The 'E' in DCAP-BTLS refers to Ecchymosis, which is a medical term used to describe discoloration of the skin resulting from bleeding underneath. It often appears as a bruise and can indicate trauma to underlying tissues or blood vessels. During a secondary survey, recognizing ecchymosis is essential as it helps in assessing the extent of injuries, understanding the mechanism of injury, and determining potential internal bleeding.

Identifying ecchymosis can influence treatment decisions and the urgency of interventions required for the patient. It's a critical assessment element for both trauma and medical emergencies, thereby providing crucial insights into the patient’s condition.