Which procedure is used to diagnose meningitis?

Which procedure is used to diagnose meningitis?

• A. Lumbar Puncture
• B. CT Head
• C. MRI Brain
• D. Blood Culture

Answer: (A)

Diagnosing meningitis relies on examining the cerebrospinal fluid, which is obtained most directly and reliably through a lumbar puncture. By collecting CSF, you can assess the cell count and type (often elevated white cells), protein level, glucose level, and perform Gram stain, culture, and sometimes PCR. This combination of findings in the CSF confirms meningitis and helps identify the cause (bacterial vs. viral, and the specific organism if present). Imaging tests like CT or MRI can be useful to rule out other problems or assess complications, and blood cultures can support suspicion, but they do not diagnose meningitis on their own. Therefore, the lumbar puncture is the diagnostic procedure for meningitis.

Diagnosing meningitis relies on examining the cerebrospinal fluid, which is obtained most directly and reliably through a lumbar puncture. By collecting CSF, you can assess the cell count and type (often elevated white cells), protein level, glucose level, and perform Gram stain, culture, and sometimes PCR. This combination of findings in the CSF confirms meningitis and helps identify the cause (bacterial vs. viral, and the specific organism if present).

Imaging tests like CT or MRI can be useful to rule out other problems or assess complications, and blood cultures can support suspicion, but they do not diagnose meningitis on their own. Therefore, the lumbar puncture is the diagnostic procedure for meningitis.