Death of bone tissue can occur when the blood supply to the bone is disrupted. What is this complication called?

Correct Answer: B

Rationale: The correct answer is B, avascular necrosis. Avascular necrosis is the condition where bone tissue dies due to the disruption of blood supply to the bone. Reflex sympathetic dystrophy (Choice A) is a chronic pain condition, delayed union (Choice C) refers to a delayed healing of a fracture, and complex regional pain syndrome (Choice D) is a chronic pain condition typically affecting an arm or leg.

Correct Answer: B

Rationale: The correct answer is B, avascular necrosis. Avascular necrosis is the condition where bone tissue dies due to the disruption of blood supply to the bone. Reflex sympathetic dystrophy (Choice A) is a chronic pain condition, delayed union (Choice C) refers to a delayed healing of a fracture, and complex regional pain syndrome (Choice D) is a chronic pain condition typically affecting an arm or leg.

Correct Answer: B

Rationale: During stage three of bone healing, callus formation occurs. This process involves the formation of a soft callus made of collagen and cartilage, which bridges the gap between bone fragments. Choice A, consolidation, typically happens in later stages and involves the hardening of the callus into mature bone. Choices C and D are incorrect as granulation formation and hematoma formation occur in earlier stages of bone healing, specifically stages one and two, respectively.

Correct Answer: D

Rationale: Hypoxemia is one of the earliest signs of fat embolism syndrome. In fat embolism syndrome, fat globules enter the bloodstream and can obstruct blood flow in the lungs, leading to hypoxemia. Paresthesia, severe pain unrelieved by medication, and edema are not typically among the earliest signs of fat embolism syndrome.

Correct Answer: D

Rationale: The best intervention to reduce the risk of falling in the hospital room for a blind client is to orient the client to the location of objects in the room. This helps the client navigate safely and independently. Choices A, B, and C are incorrect because telling the client's family to stay overnight, applying restraints, and shouting are not appropriate interventions for preventing falls in a blind client; in fact, they could potentially lead to increased anxiety and risk of falls.