A client sustained a head injury as a result of trauma. The health care provider has instituted seizure prophylactic measures. The nurse anticipates which specific measures being initiated for this client?
Aspiration precautions on day four of injury
Anticonvulsant medications on day two of injury
Intubation and ventilator support on day one of injury
Antiemetic medications on day three of injury
The Correct Answer is B
Reasoning:
Choice A reason: Aspiration precautions are important in head injury to prevent pneumonia, particularly if consciousness is impaired, but they are not specific seizure prophylactic measures. Seizures require anticonvulsants to prevent neuronal hyperexcitability, making aspiration precautions a secondary concern unrelated to seizure prevention.
Choice B reason: Anticonvulsant medications, initiated early (e.g., day two), are standard for seizure prophylaxis in head injury. Trauma can cause cortical irritation, increasing seizure risk. Drugs like levetiracetam stabilize neuronal activity, preventing seizures, which could worsen brain injury or ICP, making this the primary measure.
Choice C reason: Intubation and ventilator support are used for severe head injuries with compromised airway or breathing but are not seizure prophylaxis. Seizures are managed with anticonvulsants, as mechanical ventilation does not address neuronal excitability, making this inappropriate for seizure prevention.
Choice D reason: Antiemetic medications manage nausea but are not seizure prophylactic measures. While vomiting may occur post-head injury, it does not prevent seizures, which result from cortical irritability. Anticonvulsants directly target seizure risk, making antiemetics irrelevant to this specific intervention goal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Reasoning:
Choice A reason: An occluded urinary catheter is the most likely trigger for autonomic dysreflexia in spinal cord injury above T6. Bladder distension stimulates sympathetic overactivity, causing hypertension and bradycardia. This noxious stimulus below the injury level disrupts autonomic regulation, making catheter occlusion a common precipitant of this condition.
Choice B reason: A changed analgesia regimen is unlikely to cause autonomic dysreflexia. Pain may contribute to discomfort, but dysreflexia typically results from visceral stimuli like bladder or bowel distension. Analgesia changes do not directly trigger the sympathetic overresponse characteristic of this life-threatening condition.
Choice C reason: Failure to reposition may cause pressure injuries but is less likely to precipitate autonomic dysreflexia. While discomfort from immobility can contribute, visceral stimuli like catheter occlusion are more direct triggers, as they strongly activate the sympathetic nervous system below the spinal injury level.
Choice D reason: A blood transfusion is not a common cause of autonomic dysreflexia. Transfusions may cause reactions like fever, but dysreflexia results from stimuli like bladder distension. Transfusion-related complications do not typically trigger the autonomic overresponse seen in spinal cord injury patients with dysreflexia.
Correct Answer is A
Explanation
Reasoning:
Choice A reason: Addison’s disease, due to adrenal insufficiency, reduces aldosterone and cortisol production, leading to sodium loss (hyponatremia) and potassium retention (hyperkalemia). These electrolyte abnormalities result from impaired renal sodium reabsorption and potassium excretion, making sodium and potassium monitoring critical for managing complications like hypotension and arrhythmias.
Choice B reason: Calcium and phosphorus abnormalities are not primary concerns in Addison’s disease. These electrolytes are more affected by parathyroid or renal disorders. Addison’s disease primarily disrupts sodium and potassium balance due to aldosterone deficiency, with calcium and phosphorus typically remaining within normal ranges unless other conditions coexist.
Choice C reason: Sodium abnormalities occur in Addison’s disease due to aldosterone deficiency, causing hyponatremia. However, chloride levels are not significantly altered, as chloride follows sodium passively. Potassium imbalances (hyperkalemia) are more critical alongside sodium, making this combination less comprehensive than sodium and potassium monitoring.
Choice D reason: Chloride and magnesium abnormalities are not hallmark features of Addison’s disease. While mild chloride changes may occur with sodium loss, magnesium is typically unaffected. The primary electrolyte disturbances involve sodium (hyponatremia) and potassium (hyperkalemia), making these the focus of monitoring in adrenal insufficiency.
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