A patient presents to the ER with numbness in the left arm, a severe headache, and trouble speaking. Which of the following diagnostic tests do you anticipate the healthcare provider to order?
CT scan
Hemoglobin and hematocrit
MRI
Pulmonary angiography
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Total output is hemodialysis (4000 mL) + Jackson Pratt (20 mL) + urine (100 mL) + nasogastric (325 mL) = 4445 mL, accurately summing all fluid losses recorded.
Choice B reason: 4000 mL only accounts for hemodialysis, ignoring Jackson Pratt (20 mL), urine (100 mL), and nasogastric (325 mL), underestimating total output significantly.
Choice C reason: 4250 mL likely omits nasogastric (325 mL) or miscalculates, as 4000 + 20 + 100 + 325 = 4445 mL, missing part of the recorded fluid loss.
Choice D reason: 4500 mL overestimates; 4000 + 20 + 100 + 325 = 4445 mL, suggesting an error in adding an extra 55 mL not documented in outputs.
Correct Answer is A
Explanation
Choice A reason: Mucolytics (e.g., acetylcysteine) break disulfide bonds in mucus, thinning it to ease expectoration, directly aiding secretion clearance in respiratory conditions.
Choice B reason: Glucocorticoids reduce inflammation in airways, not liquefying mucus; they address swelling, not viscosity, so they don’t facilitate expulsion directly.
Choice C reason: Calcium channel blockers relax vascular smooth muscle for hypertension, not affecting mucus consistency or respiratory secretions, irrelevant to this goal.
Choice D reason: Bronchodilators open airways, improving airflow, but don’t alter mucus viscosity, aiding breathing, not secretion liquefaction or removal specifically.
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