AP PSYCHOLOGY

Detailed explanation-1: -A crush injury occurs when force or pressure is put on a body part. This type of injury most often happens when part of the body is squeezed between two heavy objects.

Detailed explanation-2: -Mechanism of injury-Typical causes of crush injury include being trapped under a vehicle or related to industrial, construction, or agricultural accidents [6, 7]. In natural disasters such as major earthquakes, 3 to 20 percent of mass casualties may involve crush injuries due to building collapse and entrapment [8, 9].

Detailed explanation-3: -Crush injury can be broken down into two manifestations: compartment syndrome, a localized injury, and crush syndrome, a systemic injury. Compartment syndrome occurs due to an increase in pressure within a closed compartment. This causes a decrease in perfusion and function of the tissues within that space.

Detailed explanation-4: -A crush injury is injury by an object that causes compression of the body. This form of injury is rare in normal civilian practice, but common following a natural disaster.

Detailed explanation-5: -Crush injuries of the hand involve damage to multiple structures within the hand, loss of tissue, devascularisation and possibly amputation of digits. They are complex and difficult to classify. Each injury has a unique pattern and requires a unique plan of management.