What set of arterial blood gases (ABGs) would you expect to see in a client with acute chest trauma?
pH 7.53, CO2 32, HCO3 24
pH 7.30, CO2 52, HCO3 22
pH 7.49, CO2 30, HCO3 14
pH 7.26, CO2 45, HCO3 18
The Correct Answer is B
Choice A reason: pH 7.53 and low CO2 (32) indicate respiratory alkalosis from hyperventilation, not typical in chest trauma where breathing is impaired. HCO3 (24) is normal, showing no compensation yet, misaligning with trauma physiology.
Choice B reason: pH 7.30, high CO2 (52), and near-normal HCO3 (22) reflect respiratory acidosis from hypoventilation in chest trauma, like rib fractures, reducing air exchange. Compensation is minimal acutely, fitting the clinical scenario.
Choice C reason: pH 7.49 and low CO2 (30) suggest respiratory alkalosis, while low HCO3 (14) indicates metabolic compensation. This doesn’t match chest trauma’s ventilatory restriction, which elevates CO2 instead.
Choice D reason: pH 7.26, CO2 (45), and low HCO3 (18) show mixed acidosis. Chest trauma primarily causes respiratory acidosis from CO2 retention, not a significant metabolic drop acutely, making this less precise.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: CT scan rapidly detects ischemic stroke or hemorrhage in the brain, critical for numbness, headache, and speech issues, guiding urgent treatment decisions.
Choice B reason: Hemoglobin and hematocrit assess blood count, not brain pathology like stroke, which requires imaging to identify infarction or bleeding, not anemia.
Choice C reason: MRI offers detailed stroke imaging but is slower than CT, less ideal for acute ER settings needing immediate diagnosis of neurological symptoms.
Choice D reason: Pulmonary angiography evaluates lung vessels for embolism, irrelevant to stroke symptoms (numbness, headache, speech difficulty), which localize to brain issues.
Correct Answer is D
Explanation
Choice A reason: Soft foods like applesauce aid swallowing in Parkinson’s dysphagia, reducing aspiration risk from rigidity, a correct self-management strategy.
Choice B reason: Prune juice relieves constipation, common in Parkinson’s from slowed gut motility due to dopamine loss, so this is an accurate statement.
Choice C reason: Carbidopa-levodopa boosts dopamine, easing Parkinson’s motor symptoms (tremors, rigidity), a standard treatment, making this statement correct.
Choice D reason: Parkinson’s stems from dopamine deficiency, not acetylcholine; excess acetylcholine worsens symptoms, so this is incorrect and needs teaching.
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