A pediatric nurse is assisting with the care of a child diagnosed with a fractured femur. What type of fracture would be the most likely to alert the nurse to the possibility of physical abuse?

Choice A reason: A visibly shorter leg and extreme pain post-hip arthroplasty suggest possible hip dislocation, a serious complication. Assessing neurovascular status (pulse, sensation, movement, color, temperature) in both legs is critical to detect compromised blood flow or nerve damage, which could lead to tissue ischemia or permanent injury if not addressed promptly.
Choice B reason: Elevating the leg and applying ice may reduce swelling but does not address the potential dislocation indicated by leg shortening and pain. These interventions could delay critical assessment and management of neurovascular compromise, potentially worsening outcomes in a suspected dislocation scenario.
Choice C reason: Administering pain medication may alleviate discomfort but does not address the underlying cause, such as a dislocated hip prosthesis. Pain relief is secondary to ensuring neurovascular integrity and confirming the surgical leg’s alignment, which are critical to prevent complications like tissue necrosis.
Choice D reason: Attempting to place the leg in abduction without confirming the cause of shortening and pain risks further damage, especially if the hip is dislocated. Manipulation could exacerbate neurovascular compromise or prosthesis misalignment, leading to prolonged recovery or additional surgical intervention.

Choice A reason: The wearing-off phenomenon in Parkinson’s occurs when levodopa’s effect diminishes before the next dose, causing symptom fluctuations. This results from progressive dopamine neuron loss, reducing storage capacity, and shorter levodopa half-life, leading to rapid swings in motor control as plasma levels fluctuate.
Choice B reason: Intolerance to medications may cause side effects (e.g., nausea), but the wearing-off phenomenon is due to disease progression and levodopa’s pharmacokinetics, not patient tolerance. Symptoms return as drug levels drop, not because of inability to tolerate the dose.
Choice C reason: Medications like levodopa remain effective, but wearing-off occurs due to shorter duration of action as Parkinson’s progresses, not loss of drug efficacy. Neuron loss reduces dopamine storage, causing symptoms to re-emerge between doses, not a failure of the drug itself.
Choice D reason: The liver metabolizes levodopa minimally; carbidopa prevents peripheral breakdown. Wearing-off is due to central nervous system changes (loss of dopamine neurons), not liver dysfunction, which does not significantly alter levodopa’s pharmacokinetics in Parkinson’s disease.