A patient is admitted to the hospital to rule out the possibility of bacterial meningitis, Which test will be most helpful in diagnosing this condition?
Lumbar puncture for cerebrospinal fluid (CSF) analysis and culture
Cerebral angiography
Myelography
Magnetoencephalography (MEG)
The Correct Answer is A
A. A lumbar puncture is the most important diagnostic test for suspected bacterial meningitis. It allows for analysis and culture of cerebrospinal fluid (CSF) to identify the presence of bacteria, white blood cells, protein, and glucose levels.
B. Cerebral angiography is used to visualize blood vessels in the brain, not to diagnose infections like meningitis.
C. Myelography evaluates the spinal cord, nerve roots, and spinal canal using contrast dye but is not used for diagnosing meningitis.
D. Magnetoencephalography (MEG) is used to map brain activity, often for epilepsy or brain tumors, and is not relevant for diagnosing meningitis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While creatinine levels are important for kidney function, phenytoin is more commonly associated with hepatic (liver) effects than renal toxicity.
B. Phenytoin is metabolized in the liver and can cause hepatotoxicity. Periodic liver function tests are essential to monitor for potential liver damage.
C. Potassium depletion is not typically associated with phenytoin use. It is more commonly a concern with diuretics or other medications affecting electrolytes.
D. Sedimentation rate is a non-specific marker of inflammation and is not used to monitor phenytoin therapy.
Correct Answer is ["0.6"]
Explanation
Use the formula:
Volume to administer = Ordered dose ÷ Concentration available
Volume = 3000 units ÷ 5000 units/mL
Volume = 0.6 mL
Final Answer:0.6 mL
Syringe #2 should be shaded at 0.6 mL(to the nearest tenth).
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