SAH-LP FINDINGS
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Revision as of 11:25, 2 January 2023 by Dr Appukutty Manickam (talk | contribs) (Imported from text file)
SUMMARY
1. Non-clotting, bloody CSF that does not clear with subsequent tubes.
2. Xanthochromia - yellow or pink discoloration of CSF due to bilirubin/heme pigments released by breakdown of RBC. This is the most reliable means of differentiating SAH from a traumatic tap. Spectro-photometry is more accurate than visual inspection.
3. RBC count - should not drop significantly. Usually > 100,000 cells/mm3. Should not increase significantly (this would indicate a traumatic tap).
4. Protein - elevated due to blood breakdown products.
5. Glucose - may be normal or reduced as RBCs metabolize glucose with time.
