ATI RN
Multi Dimensional Care | Rasmusson
1. Which test is used in the diagnosis of osteoporosis?
- A. Phalen's maneuver
- B. Dual-energy X-ray absorptiometry (DXA) scan
- C. Proprioception
- D. Blood culture
Correct answer: B
Rationale: The correct answer is B, Dual-energy X-ray absorptiometry (DXA) scan, which is commonly used to diagnose osteoporosis by measuring bone mineral density. Phalen's maneuver (choice A) is a test used to assess for carpal tunnel syndrome and is not related to osteoporosis. Proprioception (choice C) refers to the sense of body position and is not a diagnostic test for osteoporosis. Blood culture (choice D) is used to detect infections caused by bacteria in the bloodstream and is not relevant to the diagnosis of osteoporosis.
2. What is a negative effect of immobility on the cardiovascular system?
- A. Increased high density lipoprotein
- B. Increased circulation
- C. Increased pumping action of the heart
- D. Venous stasis
Correct answer: D
Rationale: Venous stasis is a negative effect of immobility on the cardiovascular system. Immobility can lead to blood pooling in the veins due to lack of movement, increasing the risk of blood clots. Choices A, B, and C are incorrect because immobility does not lead to an increase in high density lipoprotein, circulation, or the pumping action of the heart.
3. What occurs during stage three of bone healing?
- A. Consolidation
- B. Callus formation
- C. Granulation formation
- D. Hematoma formation
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.
4. Death of bone tissue can occur when the blood supply to the bone is disrupted. What is this complication called?
- A. Reflex sympathetic dystrophy
- B. Avascular necrosis
- C. Delayed union
- D. Complex regional pain syndrome
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.
5. What is one of the earliest signs of fat embolism syndrome?
- A. Paresthesia
- B. Severe pain in the affected limb unrelieved by medication
- C. Edema
- D. Hypoxemia
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.
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