Diagnosis & Imaging

CSF analysis

CSF analysis is laboratory testing of cerebrospinal fluid to look for infection, bleeding, or other findings.

In short: CSF analysis

  • It is laboratory testing of the cerebrospinal fluid.
  • It can detect infection, bleeding, and other abnormalities.
  • It helps identify causes such as meningitis.
  • It is part of evaluating certain hydrocephalus situations.

What it is

CSF analysis is laboratory testing of a sample of cerebrospinal fluid — for example, examining its cells, protein, glucose, and other components, and testing for infection. It helps identify causes and complications relevant to hydrocephalus.

Understanding CSF analysis

When CSF is obtained (by lumbar puncture, from a shunt or reservoir, or during surgery), analyzing it can reveal infection (such as meningitis or a shunt infection), evidence of bleeding, or other abnormalities. For example, signs of infection in the CSF are important in diagnosing and managing meningitis or ventriculitis, which are both causes of hydrocephalus and potential complications of shunts. CSF analysis is therefore used selectively, when its results will help with diagnosis or management — for instance, when infection is suspected. The findings are interpreted alongside the clinical picture and other tests.

Why it matters

Understanding CSF analysis helps families see how testing the fluid itself can identify infection, bleeding, or other findings that are important causes or complications in hydrocephalus, guiding management.

Common questions

What does CSF analysis look for?

Infection, bleeding, and other abnormalities in the fluid.

Why is it useful?

It helps diagnose causes and complications like meningitis or shunt infection.

When is it done?

Selectively, when results will help diagnosis or management.

Bottom line

CSF analysis is laboratory testing of cerebrospinal fluid to detect infection, bleeding, or other findings relevant to hydrocephalus.

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