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 because peripheral edema is not a lifethreatening complication of immobility. Peripheral edema is the swelling of the lower extremities due to fluid accumulation. It can be caused by various factors, such as venous insufficiency, heart failure, kidney disease, or medication side effects. The nurse should monitor the client's fluid status and provide elevation and compression therapy as needed.

Choice B reason: This is the priority assessment because lung sounds can indicate the presence of respiratory complications, such as pneumonia or atelectasis, which are common and serious consequences of immobility. Pneumonia is an infection of the lungs that causes inflammation, mucus production, and impaired gas exchange. Atelectasis is the collapse of alveoli, which are the tiny air sacs in the lungs that facilitate oxygen and carbon dioxide exchange. The nurse should auscultate the client's lung sounds regularly and report any abnormal findings, such as crackles, wheezes, or diminished breath sounds. The nurse should also encourage the client to cough, deep breathe, and use incentive spirometry to prevent or treat respiratory problems.

Choice C reason: This is not the priority assessment because bowel sounds can reflect the status of the gastrointestinal system, which is not directly affected by immobility. Bowel sounds are the noises produced by the movement of food and gas through the intestines. They can vary in frequency and intensity depending on the client's diet, activity, and medications. The nurse should auscultate the client's bowel sounds and assess for any signs of constipation, diarrhea, or obstruction. The nurse should also promote the client's bowel function by providing adequate hydration, fiber, and laxatives as ordered.

Choice D reason: This is not the priority assessment because skin turgor can indicate the level of hydration, which is not a primary concern of immobility. Skin turgor is the elasticity of the skin that allows it to return to its normal shape after being pinched or pulled. It can be affected by factors such as age, weight loss, dehydration, or edema. The nurse should assess the client's skin turgor and provide adequate fluids and electrolytes as needed. The nurse should also pay attention to the client's skin integrity and prevent or treat any pressure ulcers or wounds that may result from immobility.

Choice A reason: This is not the correct answer because a skin infection is not transmitted by airborne droplets. A skin infection is usually caused by bacteria, fungi, or parasites that invade the skin and cause inflammation, redness, itching, or pus. A skin infection can be contagious by direct contact with the infected area or by sharing personal items, such as towels, clothing, or razors. The client with a skin infection should be placed in isolation for contact precautions, which involve wearing gloves and gowns and using disposable equipment.

Choice B reason: This is the correct answer because a fever with cough can be a sign of a respiratory infection that is transmitted by airborne droplets. A respiratory infection is caused by viruses, bacteria, or fungi that infect the lungs, throat, or nose and cause symptoms such as fever, cough, sore throat, or difficulty breathing. A respiratory infection can be contagious by inhaling the tiny droplets that are released when the infected person coughs, sneezes, or talks. The client with a respiratory infection should be placed in isolation for airborne precautions, which involve wearing a respirator mask and placing the client in a negative pressure room.

Choice C reason: This is not the correct answer because a rash is not transmitted by airborne droplets. A rash is a change in the color, texture, or appearance of the skin that can be caused by various factors, such as allergies, infections, medications, or injuries. A rash can be contagious by direct contact with the affected skin or by sharing personal items, such as clothing, bedding, or sports equipment. The client with a rash should be placed in isolation for contact precautions, which involve wearing gloves and gowns and using disposable equipment.

Choice D reason: This is not the correct answer because heart palpitations are not transmitted by airborne droplets. Heart palpitations are the sensation of having a fast, irregular, or pounding heartbeat that can be caused by various factors, such as stress, anxiety, caffeine, nicotine, or heart conditions. Heart palpitations are not contagious and do not require isolation. The client with heart palpitations should be evaluated for the underlying cause and treated accordingly.