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.

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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Calling the provider is not the intervention that the nurse should perform first, because it is not the most urgent and relevant action. Calling the provider is a communication intervention, not a respiratory intervention. Calling the provider is an important action, but it should be done after raising the head of the bed, and with accurate and complete information.
Choice B reason: Placing the client in the lithotomy position is not the intervention that the nurse should perform first, because it is not the most urgent and relevant action. Placing the client in the lithotomy position is a positioning intervention, not a respiratory intervention. Placing the client in the lithotomy position is a specific action that is used for pelvic examinations or procedures, not for improving oxygenation.
Choice C reason: Raising the head of the bed is the intervention that the nurse should perform first, because it is the most urgent and relevant action. Raising the head of the bed is a respiratory intervention, not a communication, positioning, or analgesic intervention. Raising the head of the bed is a simple and effective action that can improve the client's breathing, oxygenation, and comfort.
Choice D reason: Obtaining pain medication is not the intervention that the nurse should perform first, because it is not the most urgent and relevant action. Obtaining pain medication is an analgesic intervention, not a respiratory intervention. Obtaining pain medication is an important action, but it should be done after raising the head of the bed, and with a medical order and a proper route.
Correct Answer is C
Explanation
Choice A reason: This is an incorrect statement because it is not based on any assessment or diagnosis. Osteoporosis is a condition that affects the bones, not the joints. It also does not cause fatigue. The nurse should not make assumptions or give advice without proper evaluation.
Choice B reason: This is an incorrect statement because it is dismissive and insensitive. Arthritis is a general term that covers many types of joint inflammation and pain. It is not a simple condition that can be treated with just ibuprofen. The nurse should not minimize the patient's concerns or prescribe medication without a doctor's order.
Choice C reason: This is the correct statement because it shows empathy and interest in the patient's situation. It also helps the nurse gather more information about the onset, duration, frequency, and severity of the pain. This can help the nurse identify possible causes and plan appropriate interventions.
Choice D reason: This is an incorrect statement because it is rude and judgmental. Weight loss may or may not help with joint pain, depending on the underlying cause. The nurse should not blame the patient or make them feel guilty. The nurse should focus on the patient's current symptoms and needs, not their appearance or lifestyle.
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