A nurse assesses an audible grating sound (crepitus) when a client with osteoarthritis moves his knees. What is the cause of this sound?
Popping bursae from standing
A herniated disk in the diseased joint
Pieces of bone and cartilage floating
Years of an autoimmune process
The Correct Answer is C
Choice A reason: Popping bursae from standing is not the cause of the grating sound. Bursae are fluidfilled sacs that cushion the joints and reduce friction. Popping bursae may produce a snapping or clicking sound, but not a grating sound.
Choice B reason: A herniated disk in the diseased joint is not the cause of the grating sound. A herniated disk is a condition where the soft inner part of the intervertebral disk bulges out through a tear in the outer layer. A herniated disk may cause pain, numbness, or weakness, but not a grating sound.
Choice C reason: Pieces of bone and cartilage floating is the cause of the grating sound. Osteoarthritis is a degenerative joint disease that causes the breakdown of the cartilage and bone in the joints. Pieces of bone and cartilage may detach and float in the joint space, causing a grating sound when the joint moves.
Choice D reason: Years of an autoimmune process is not the cause of the grating sound. An autoimmune process is a condition where the immune system attacks the body's own tissues. An autoimmune process may cause inflammation, swelling, or damage to the joints, but not a grating sound.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: "I will use a humidifier during the winter months." is not the correct answer, because it indicates a good understanding of dry skin. Using a humidifier during the winter months is a helpful measure to prevent or treat dry skin, as it can increase the moisture level in the air, which can hydrate the skin and reduce the loss of natural oils.
Choice B reason: "I will shower every day in hot water." is the correct answer, because it indicates a need for further teaching about dry skin. Showering every day in hot water is a harmful practice that can worsen dry skin, as it can strip the skin of its natural oils, damage the skin barrier, and cause irritation and inflammation.
Choice C reason: "I will avoid tight belts." is not the correct answer, because it indicates a good understanding of dry skin. Avoiding tight belts is a helpful measure to prevent or treat dry skin, as it can reduce the friction and pressure on the skin, which can prevent skin breakdown and infection.
Choice D reason: "I will drink at least 3000 mL of water daily." is not the correct answer, because it indicates a good understanding of dry skin. Drinking at least 3000 mL of water daily is a helpful measure to prevent or treat dry skin, as it can hydrate the body and the skin, and flush out toxins and waste products.
Correct Answer is A
Explanation
Choice A reason: Stage 4 is the remodeling stage of bone healing, which occurs from 6 to 12 weeks after the fracture. In this stage, the callus, which is a mass of fibrous tissue and cartilage that forms around the fracture site, is gradually resorbed and replaced by mature bone. The bone becomes stronger and more compact and regains its original shape and function.
Choice B reason: Stage 3 is the callus formation stage of bone healing, which occurs from 2 to 6 weeks after the fracture. In this stage, the granulation tissue, which is a soft tissue that fills the fracture gap, is replaced by a callus that bridges the fracture ends. The callus is composed of fibroblasts, chondroblasts, and osteoblasts that produce collagen, cartilage, and bone matrix. The callus stabilizes the fracture and prepares it for remodeling.
Choice C reason: Stage 5 is not a valid stage of bone healing. There are only four stages of bone healing: stage 1 is the inflammatory stage, stage 2 is the reparative stage, stage 3 is the callus formation stage, and stage 4 is the remodeling stage.
Choice D reason: Stage 1 is the inflammatory stage of bone healing, which occurs from the time of the fracture to 3 to 5 days after the fracture. In this stage, the blood vessels around the fracture site are ruptured and form a hematoma, which is a blood clot that surrounds the fracture ends. The hematoma triggers an inflammatory response that involves the release of cytokines, growth factors, and inflammatory cells that initiate the healing process. The hematoma also provides a scaffold for the granulation tissue to grow.
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