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Meningitis: Layers of Meninges and Common Diseases

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Meningitis: Layers of Meninges and Common Diseases

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Questions and Answers

What is the most serious type of meningitis?

Fungal

Viral

Bacterial (correct)

Chemical

How many layers of meninges are there?

Five

Three (correct)

Four

Two

What is the main investigation for diagnosing meningitis?

Blood test for infection markers

X-ray of the skull

CSF analysis by lumbar puncture (correct)

CT or MRI of the brain

In which scenario do neurosurgeons commonly see meningitis?

Following trauma or basal skull fracture Signup and view all the answers

What are the signs of meningitis that can help in diagnosis?

Neck stiffness and photophobia Signup and view all the answers

Why is lumbar puncture contraindicated in the presence of a large space-occupying lesion?

To avoid creating a pressure gradient that can lead to herniation Signup and view all the answers

What is the main concern with performing lumbar puncture in the presence of a significant space-occupying lesion?

The possibility of transferring pressure from infratentorial to supratentorial compartments Signup and view all the answers

What impact does a small lesion have on the decision to perform a lumbar puncture?

Benefit and risk assessment is necessary before proceeding Signup and view all the answers

What is the primary purpose of CSF analysis in managing meningitis?

To define the causative organism Signup and view all the answers

Why is empirical treatment initiated after defining the causative organism in meningitis management?

To cover a broad spectrum of potential pathogens Signup and view all the answers