A nurse assesses an audible grating sound (crepitus) when a client with osteoarthritis moves his knees. What is the cause of this sound?

Choice A reason: This is not the priority assessment, but it is an important assessment for a client with a femur fracture. Pain is the unpleasant sensation that results from tissue damage or inflammation. Pain can affect the client's physical and psychological wellbeing and interfere with their recovery. The nurse should assess the client's pain level, location, quality, and duration using a valid and reliable pain scale. The nurse should also provide pain relief measures, such as medication, ice, elevation, or distraction, as ordered and as needed.

Choice B reason: This is not the priority assessment, but it is a relevant assessment for a client with a femur fracture. Medication history is the record of the drugs that the client is currently taking or has taken in the past, including prescription, overthecounter, herbal, or recreational drugs. Medication history can help the nurse identify any potential drug interactions, allergies, or contraindications that may affect the client's treatment and recovery. The nurse should ask the client about their medication history and document it accurately and completely.

Choice C reason: This is not the priority assessment, but it is a helpful assessment for a client with a femur fracture. Socioeconomic status is the measure of the client's income, education, occupation, and social class. Socioeconomic status can influence the client's access to health care, ability to afford treatment, compliance with therapy, and support system. The nurse should assess the client's socioeconomic status and provide appropriate referrals, resources, or assistance as needed.

Choice D reason: This is the priority assessment for a client with a femur fracture. Pedal pulses are the pulses that can be felt in the feet, such as the dorsalis pedis or the posterior tibial pulse. Pedal pulses can indicate the blood flow and perfusion to the lower extremities, which can be compromised by a femur fracture. A femur fracture can cause bleeding, swelling, or pressure that can reduce or obstruct the blood supply to the feet, leading to ischemia, necrosis, or gangrene. The nurse should assess the client's pedal pulses regularly and report any changes, such as absent, weak, or thready pulses. The nurse should also monitor the client's skin color, temperature, sensation, and movement in the feet.

Choice A reason: Administering topical hydrocortisone is the appropriate nursing intervention, because it can help reduce the inflammation and itching of the skin lesions that are common in SLE. SLE is a chronic autoimmune disease that causes the immune system to attack various organs and tissues, such as the skin, joints, kidneys, heart, and blood vessels. Hydrocortisone is a type of corticosteroid that can suppress the immune response and relieve the symptoms of SLE.

Choice B reason: Applying cold therapy to the extremities is not the appropriate nursing intervention, because it can worsen the circulation and sensation of the fingers and toes that are affected by Raynaud's phenomenon, which is a complication of SLE. Raynaud's phenomenon is a condition that causes the blood vessels in the extremities to narrow and spasm in response to cold or stress, resulting in numbness, pain, and color changes. Cold therapy can trigger or aggravate Raynaud's phenomenon.

Choice C reason: Administering antibiotics is not the appropriate nursing intervention, because it is not indicated for SLE, unless there is a secondary infection. SLE is not caused by bacteria, but by the abnormal activity of the immune system. Antibiotics are drugs that can kill or inhibit the growth of bacteria, but they have no effect on the underlying cause of SLE. Antibiotics can also have side effects, such as allergic reactions, gastrointestinal disturbances, or resistance.

Choice D reason: Encouraging ultraviolet (UV) light exposure is not the appropriate nursing intervention, because it can trigger or worsen the skin lesions and the disease activity of SLE. UV light is a type of radiation that can damage the DNA and the cells of the skin, causing inflammation, redness, and blistering. UV light can also stimulate the production of antibodies and cytokines that can attack the organs and tissues of the body.