What is an infectious disease that can be transmitted directly from one person to another?

Choice A reason: A 44yearold prescribed antibiotics for pneumonia is not at the greatest risk for pressure injury development, because he or she does not have any major risk factors for pressure injury. Pressure injury is a localized damage to the skin and underlying tissues caused by pressure, shear, friction, or moisture. Antibiotics for pneumonia do not directly affect the skin integrity or blood circulation, nor do they impair the mobility or sensation of the client.

Choice B reason: A 26yearold bedridden client with a fractured leg is at a high risk for pressure injury development, but not the greatest, because he or she has only one major risk factor for pressure injury. Bedridden status is a major risk factor for pressure injury, because it causes prolonged pressure on the bony prominences, such as the sacrum, heels, or hips, which can impair blood flow and oxygen delivery to the skin and tissues. However, the client's age, fracture, and mobility may mitigate some of the risk, as he or she may have better skin elasticity, wound healing, and ability to reposition.

Choice C reason: A 65yearold with hemiparesis and incontinence is at the greatest risk for pressure injury development, because he or she has multiple major risk factors for pressure injury. Age is a risk factor for pressure injury, because it causes decreased skin elasticity, thickness, and vascularity, which can affect the skin's resilience and repair. Hemiparesis is a risk factor for pressure injury, because it causes reduced mobility, sensation, and muscle mass, which can affect the client's ability to reposition, feel pain, and maintain tissue perfusion. Incontinence is a risk factor for pressure injury, because it causes moisture, irritation, and infection of the skin, which can weaken the skin barrier and delay wound healing.

Choice D reason: A 78yearold requiring assistance to ambulate with a walker is at a moderate risk for pressure injury development, but not the greatest, because he or she has only one major risk factor for pressure injury. Age is a risk factor for pressure injury, as explained above. However, the client's ambulation and assistance may reduce some of the risk, as he or she may have less pressure, shear, and friction on the skin and tissues, and more blood circulation and oxygen delivery.

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.