A client is viewing X-rays of a healing bone fracture and asks the nurse if the bone will ever be ‘normal’ again. Based on the nurse’s knowledge of bone healing, what is the best response?
The bone will be more ‘normal’ when there is inflammation and hematoma surrounding the fracture site
The bone will be more ‘normal’ when callus formation occurs
The bone will be more like ‘normal’ when bone-forming cells absorb the callus into woven bone
The bone will be more normal when there is a proliferation of osteoclasts at the site
The Correct Answer is C
Choice A reason: Inflammation and hematoma formation occur immediately after a fracture, initiating healing by recruiting immune cells and growth factors. However, this stage does not restore ‘normal’ bone structure, as it involves soft tissue response, not bone remodeling. This statement is inaccurate, as the bone remains structurally abnormal during this early phase.
Choice B reason: Callus formation, occurring 2-6 weeks post-fracture, involves soft and hard callus bridging the fracture. While critical, it represents a temporary, weaker structure, not ‘normal’ bone. Osteoblasts form a cartilaginous matrix, but full strength and normal bone architecture require further remodeling, making this statement less accurate.
Choice C reason: Woven bone formation, where osteoblasts convert callus into disorganized woven bone, marks progression toward normal bone structure. This bone is later remodeled by osteoclasts and osteoblasts into lamellar bone, restoring strength and architecture. This statement is accurate, as woven bone formation approaches ‘normal’ bone structure during healing.
Choice D reason: Osteoclast proliferation resorbs bone during remodeling but does not directly restore ‘normal’ bone. Excessive osteoclast activity could weaken the bone. Osteoblasts, not osteoclasts, drive the formation of woven and lamellar bone, making this statement inaccurate, as osteoclasts support remodeling, not normalization, of bone structure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Gout results from hyperuricemia, leading to urate crystal deposition in joints. A 45-year-old male with obesity (BMI 40) has increased purine turnover, elevating uric acid. Hydrochlorothiazide reduces urate excretion, and aspirin impairs renal uric acid clearance, significantly increasing gout risk, making this patient the most susceptible due to multiple risk factors.
Choice B reason: Bulimia may cause electrolyte imbalances, but it is not strongly linked to hyperuricemia or gout. A BMI of 24 is normal, reducing obesity-related purine production. This 39-year-old female has fewer gout risk factors compared to an obese male on medications that elevate uric acid, making her less likely to develop gout.
Choice C reason: Ulcerative colitis may cause systemic inflammation, but it is not a direct risk factor for gout. Hyperuricemia is not typically associated with inflammatory bowel diseases unless complicated by other factors like diuretic use. This 27-year-old female has a lower gout risk compared to the obese male with predisposing medications.
Choice D reason: Limiting purine-rich foods like smoked meat and cheeses reduces uric acid production, lowering gout risk. This 56-year-old male’s dietary habits mitigate hyperuricemia, making him the least likely to develop gout compared to the obese patient on medications that impair uric acid metabolism and excretion.
Correct Answer is B
Explanation
Choice A reason: Bulk-forming fiber supplements, like psyllium, increase stool bulk without significantly decreasing nutrient absorption. While high doses may slightly affect mineral uptake, routine vitamin supplementation is not required. This statement is inaccurate, as nutrient malabsorption is not a primary concern with fiber supplements.
Choice B reason: Fiber supplements require adequate hydration (at least 8 glasses of water daily) to swell and soften stool, promoting bowel movements. Insufficient water can cause fiber to harden, worsening constipation. This statement is accurate, as hydration is critical for the efficacy and safety of fiber supplements.
Choice C reason: Long-term fiber use does not cause dependency; it mimics natural dietary fiber, promoting regular bowel movements. The colon adapts to increased bulk without losing intrinsic motility. This statement is inaccurate, as fiber supports, not undermines, normal bowel function in chronic use.
Choice D reason: Delaying the urge to defecate can worsen constipation by causing stool to harden and reducing rectal sensitivity. Prompt response to bowel urges promotes regularity. This statement is inaccurate, as it contradicts the goal of improving bowel regimen with fiber supplementation.
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