A client is recovering from a fractured radius that occurred 8 weeks ago. In which stage of bone healing is the callus resorbed and transformed into bone?

Choice A reason: Ischemia is a cause of a pressure ulcer, because it means reduced blood flow to the tissues, which can lead to tissue hypoxia, necrosis, and ulceration. Ischemia can result from factors such as compression, friction, shear, or vascular disease.

Choice B reason: Immobility is a cause of a pressure ulcer, because it means prolonged pressure on the bony prominences, which can impair blood flow and cause ischemia, tissue damage, and ulceration. Immobility can result from factors such as paralysis, injury, illness, or sedation.

Choice C reason: Poor nutrition is a cause of a pressure ulcer, because it means inadequate intake or absorption of nutrients, such as protein, calories, vitamins, and minerals, which are essential for tissue repair and wound healing. Poor nutrition can result from factors such as anorexia, malabsorption, or poverty.

Choice D reason: Moisture is a cause of a pressure ulcer, because it means excessive wetness or dampness of the skin, which can weaken the skin barrier, increase the risk of infection, and delay wound healing. Moisture can result from factors such as incontinence, perspiration, or wound drainage.

Choice E reason: Adequate perfusion is not a cause of a pressure ulcer, but rather a protective factor. Adequate perfusion means sufficient blood flow to the tissues, which can prevent ischemia, tissue damage, and ulceration. Adequate perfusion can be promoted by factors such as regular repositioning, pressure relief, and exercise.

Choice A reason: This is not the highest priority client because a urinary tract infection (UTI) is a common and treatable condition that affects the lower urinary system, such as the bladder or urethra. A fever of 38.5°C and flank pain can indicate that the infection has spread to the upper urinary system, such as the kidneys, which can cause pyelonephritis. Pyelonephritis is a serious but not lifethreatening complication that requires antibiotic therapy and hydration. The nurse should monitor the client's vital signs, urine output, and pain level and administer the prescribed medication and fluids.

Choice B reason: This is not the highest priority client because a deep vein thrombosis (DVT) is a blood clot that forms in a deep vein, usually in the lower extremities. A positive Homans' sign and edema in the affected leg can indicate that the clot is causing inflammation and obstruction of the blood flow. DVT is a serious but not lifethreatening complication that requires anticoagulant therapy and compression therapy. The nurse should monitor the client's vital signs, leg circumference, and pain level and administer the prescribed medication and stockings.

Choice C reason: This is the highest priority client because a myocardial infarction (MI) is a heart attack that occurs when the blood flow to a part of the heart muscle is blocked, causing tissue damage or death. Chest pain and shortness of breath can indicate that the client is experiencing acute cardiac ischemia, which can lead to cardiac arrest or heart failure. MI is a lifethreatening emergency that requires immediate intervention and treatment. The nurse should activate the rapid response team, monitor the client's vital signs, electrocardiogram, and oxygen saturation, and administer the prescribed medication and oxygen.

Choice D reason: This is not the highest priority client because a stroke is a brain attack that occurs when the blood flow to a part of the brain is interrupted, causing tissue damage or death. Slurred speech and facial droop can indicate that the client is experiencing acute neurological impairment, which can affect their communication and facial expression. Stroke is a serious but not lifethreatening complication that requires prompt evaluation and treatment. The nurse should monitor the client's vital signs, neurological status, and glucose level and administer the prescribed medication and fluids.