A 20-year-old woman is brought to the Emergency Room with a 2-day history of headache, fever, photosensitivity, lethargy, and skin eruption. Which of the following is the most appr... A 20-year-old woman is brought to the Emergency Room with a 2-day history of headache, fever, photosensitivity, lethargy, and skin eruption. Which of the following is the most appropriate investigation to establish the diagnosis? A. Skin biopsy B. Blood culture C. Lumbar puncture D. Meningococcal serology
Understand the Problem
The question presents a clinical scenario involving a 20-year-old woman with specific symptoms and asks which investigation is most appropriate to establish a diagnosis. It requires understanding medical diagnostics.
Answer
C. Lumbar puncture
The final answer is C. Lumbar puncture
Answer for screen readers
The final answer is C. Lumbar puncture
More Information
A lumbar puncture is crucial for diagnosing bacterial meningitis because it allows examination of cerebrospinal fluid (CSF) for evidence of infection.
Tips
Common mistakes include choosing blood culture or meningococcal serology, but immediate analysis of CSF is more definitive for meningitis.
Sources
- USMLEPREPS! - usmlepreps.com
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