What is an example of a client's primary defense to infection?

Choice A reason: Inspecting the client's skin is the nurse's priority, because it is the most urgent and relevant action. Inspecting the client's skin can help identify any signs of infection, injury, or infestation, such as wounds, rashes, ulcers, or lice. The client's skin may be compromised by the lack of hygiene, exposure to the elements, or poor nutrition. The client's skin may also be a source of transmission of pathogens to other clients or staff. Therefore, inspecting the client's skin is essential for the assessment, diagnosis, and treatment of the client's condition.

Choice B reason: Providing a towel and showing the client to the shower is not the nurse's priority, because it is not the most urgent and relevant action. Providing a towel and showing the client to the shower is an important intervention, but it should be done after inspecting the client's skin and ensuring the safety and infection prevention of the client and others. The client may have wounds, rashes, or ulcers that need to be cleaned, dressed, or treated before bathing. The client may also have lice or scabies that need to be isolated and treated with special shampoos or creams before bathing. The client may also need assistance or supervision during bathing, depending on the client's physical and mental status.

Choice C reason: Asking if the client has been to a homeless shelter recently is not the nurse's priority, because it is not the most urgent and relevant action. Asking if the client has been to a homeless shelter recently is an important question, but it should be done after inspecting the client's skin and providing a towel and showing the client to the shower. The client's history of homelessness and shelter use may provide some information about the client's social and environmental factors, such as exposure to violence, abuse, or disease, or access to resources, services, or support. However, this information is not as critical as the client's skin condition, which may require immediate attention and care.

Choice D reason: Calling a social worker is not the nurse's priority, because it is not the most urgent and relevant action. Calling a social worker is an important referral, but it should be done after inspecting the client's skin, providing a towel and showing the client to the shower, and asking if the client has been to a homeless shelter recently. The social worker can help the client with the psychosocial and practical aspects of homelessness, such as finding a shelter, applying for benefits, accessing health care, or addressing mental health or substance abuse issues. However, this referral is not as urgent as the client's skin condition, which may require immediate attention and care.

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.