- To assess the presence of protein in the C S F.
- The normal color of the C S F is clear and colorless.
- The color appearance depends upon the presence of hyperbilirubinemia, hypercarotenemia, melanoma and elevated protein level.
- A cloudy appearance indicates an increased number of WBC or protein.
- Red tinge indicates blood that may be due to hemorrhage in the subarachnoid space or due to a traumatic tap.
- Due to traumatic tap, blood may form clot while this will not occur in the subarachnoid bleeding.
- In traumatic tap successive tubes become clear of blood.
- Xanthochromia is usually referred to an as yellow tinge.
How to check xanthochromia
- The easiest way is that centrifuge the CSF and sees against the white background.
Xanthochromia when positive in the CSF indicates raised the level of protein.
Please see more details in C S F fluid analysis.
Possible References Used
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