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: Sweating, trembling, and confusion indicate hypoglycemia in type 1 diabetes, likely from excess insulin. Administering fast-acting carbohydrates (e.g., glucose tablets, juice) rapidly raises blood glucose by providing readily absorbable sugars, reversing neuroglycopenic symptoms. This is the first action to prevent seizures or coma, ensuring immediate stabilization.
Choice B reason: Administering insulin during hypoglycemia would further lower blood glucose, exacerbating symptoms and risking severe outcomes like unconsciousness. Insulin drives glucose into cells, worsening the deficit. This action is contraindicated and dangerous, as it directly opposes the need to raise blood sugar immediately.
Choice C reason: Complex carbohydrates and proteins digest slowly, providing delayed glucose release, unsuitable for acute hypoglycemia requiring rapid correction. While appropriate for long-term glucose stability, this is not the first action, as it fails to address the urgent need for fast-acting sugars to reverse symptoms.
Choice D reason: Calling the healthcare provider delays treatment of hypoglycemia, which requires immediate carbohydrate administration to prevent neurological damage. While provider consultation may follow for insulin adjustment, it is not the first action. This choice is inappropriate, as it postpones critical intervention needed for symptom resolution.
Correct Answer is B
Explanation
Choice A reason: Melena, dark tarry stools from digested blood, indicates upper gastrointestinal bleeding, not typically GERD. GERD involves acid reflux causing esophageal irritation, not bleeding severe enough for melena. This statement is inaccurate, as melena is more associated with ulcers or varices, not reflux disease.
Choice B reason: Heartburn, a burning sensation in the chest, is a hallmark of GERD, caused by stomach acid refluxing into the esophagus, irritating the mucosa. It results from lower esophageal sphincter dysfunction, allowing acid backflow. This statement is accurate, as heartburn is a primary diagnostic symptom of GERD.
Choice C reason: Hematemesis, vomiting blood, is not a common GERD symptom but indicates severe conditions like esophageal varices or ulcers. While chronic GERD may lead to esophagitis, bleeding is rare. This statement is inaccurate, as hematemesis is not a characteristic feature of typical GERD presentations.
Choice D reason: Dysphagia, difficulty swallowing, can occur in severe GERD due to esophageal strictures or motility issues but is not a primary characteristic. Heartburn is more common and diagnostic. This statement is less accurate, as dysphagia is a complication, not a defining feature of GERD.
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