The nurse is caring for a client who develops compartment syndrome from a severely fractured arm. The client asks the nurse why this can happen. What is the best response by the nurse?
A bone fragment has injured the nerve supply in the area.
An injured artery causes impaired arterial perfusion through the compartment.
Bleeding and swelling cause increased pressure in an area that cannot expand.
The fascia expands with injury, causing pressure on underlying nerves and muscles.
The Correct Answer is C
Choice A reason: A bone fragment has injured the nerve supply in the area is not the best response by the nurse. This may be a possible complication of a fracture, but it does not explain the mechanism of compartment syndrome. Compartment syndrome is a condition where the pressure within a closed space (such as a muscle compartment) exceeds the perfusion pressure and causes ischemia and necrosis of the tissues. A bone fragment may damage the nerve, but it does not cause increased pressure in the compartment.
Choice B reason: An injured artery causes impaired arterial perfusion through the compartment is not the best response by the nurse. This may be a possible cause of compartment syndrome, but it is not the most common one. Compartment syndrome is more often caused by venous obstruction than arterial obstruction. An injured artery may reduce the blood flow to the compartment, but it does not cause increased pressure in the compartment.
Choice C reason: Bleeding and swelling cause increased pressure in an area that cannot expand is the best response by the nurse. This is the most common cause of compartment syndrome and explains the pathophysiology of the condition. Bleeding and swelling are the result of inflammation and tissue injury that occur after a fracture. They increase the volume of fluid in the compartment, which cannot expand due to the rigid fascia that surrounds it. This leads to increased pressure in the compartment, which compresses the blood vessels, nerves, and muscles and causes ischemia and necrosis of the tissues.
Choice D reason: The fascia expands with injury, causing pressure on underlying nerves and muscles is not the best response by the nurse. This is not a correct statement, as the fascia does not expand with injury. The fascia is a tough connective tissue that encloses the muscle compartments and limits their expansion. The fascia is part of the problem, not the cause, of compartment syndrome. The fascia prevents the compartment from accommodating the increased volume of fluid and causes increased pressure in the compartment.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Psoriasis is a skin abnormality that causes patches of thick, red skin with silvery scales, usually on the elbows, knees, scalp, lower back, or genitals. Psoriasis is a chronic, inflammatory, autoimmune condition that affects the life cycle of skin cells, causing them to build up rapidly on the surface of the skin. Psoriasis can cause itching, burning, pain, or bleeding.
Choice B reason: Rosacea is a skin abnormality that causes redness, flushing, swelling, or pimples, usually on the face, especially the cheeks, nose, chin, or forehead. Rosacea is a chronic, inflammatory, vascular condition that affects the blood vessels and sebaceous glands of the skin. Rosacea can cause sensitivity, stinging, or dryness.
Choice C reason: Scabies is a skin abnormality that causes small, red bumps, blisters, or burrows, usually on the hands, wrists, feet, ankles, or genitals. Scabies is a contagious, parasitic infection that is caused by tiny mites that burrow into the skin and lay eggs. Scabies can cause intense itching, especially at night.
Choice D reason: Stasis dermatitis is a skin abnormality that causes swelling, redness, scaling, or ulcers, usually on the lower legs or ankles. Stasis dermatitis is a chronic, inflammatory condition that results from poor blood circulation in the veins of the legs, causing fluid to leak into the surrounding tissues. Stasis dermatitis can cause pain, itching, or infection.
Correct Answer is D
Explanation
Choice A reason: Truck driver is not an occupation that increases the risk for carpal tunnel syndrome, because it does not involve repetitive or forceful flexion or extension of the wrist. Carpal tunnel syndrome is a condition that occurs when the median nerve, which runs through the carpal tunnel in the wrist, is compressed or irritated by inflammation, swelling, or pressure. Truck drivers may experience other musculoskeletal problems, such as back pain, neck pain, or shoulder pain, due to prolonged sitting, vibration, or poor posture.
Choice B reason: Nursing assistant is an occupation that increases the risk for carpal tunnel syndrome, but it is not the best answer, because it involves other factors besides repetitive motion that can contribute to the condition. Nursing assistants may perform repetitive tasks, such as lifting, transferring, or bathing patients, that can strain the wrist and the median nerve. However, they may also experience other risk factors, such as trauma, infection, arthritis, or pregnancy, that can cause carpal tunnel syndrome.
Choice C reason: Elementary school teacher is not an occupation that increases the risk for carpal tunnel syndrome, because it does not involve repetitive or forceful flexion or extension of the wrist. Elementary school teachers may perform some tasks, such as writing, typing, or grading papers, that can involve wrist movement, but they are not likely to be frequent or intense enough to cause carpal tunnel syndrome. Elementary school teachers may experience other stressrelated problems, such as headaches, fatigue, or burnout, due to the demands of their work.
Choice D reason: Assembly line worker is the best answer, because it is an occupation that increases the risk for carpal tunnel syndrome, due to the nature and duration of the work. Assembly line workers may perform repetitive, forceful, or awkward movements of the wrist, such as twisting, bending, or gripping, that can cause compression or irritation of the median nerve. Assembly line workers may also work for long hours, with little rest or variation, that can exacerbate the condition.
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