The first step in the progression of compartment syndrome is: a. blood flow to the area is lost, and the limb itself may be lost if the pressure is not relieved. b. a fracture or crush injury causes bleeding or swelling in an extremity. c. cellular damage occurs and causes additional swelling. d. pressure and swelling caused by bleeding within a muscle compartment becomes so great that the body can no longer perfuse the tissues against the pressure.

Answer is B. a fracture or crush injury causes bleeding or swelling in an extremity.

Explanation:

Compartment syndrome is a painful condition in which there is an increased pressure within muscles or one of the body's compartment, resulting in insufficient blood supply or blood flow to tissue around or within the area.

It majorly affects the compartments of the leg or arm, and could be acute or chronic.

An acute compartment syndrome requires a surgical emergency, while the chronic is not a medical emergency.

Some of the symptoms are severe pain, numbness and pale color of the affected area.

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explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.