Difference between revisions of "SAH-LP FINDINGS"

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1. Non-clotting, bloody CSF that does not clear with subsequent tubes.  
1. Non-clotting, bloody CSF that does not clear with subsequent tubes.  
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<br/>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.  
<br/>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.  
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<br/>3. RBC count - should not drop significantly. Usually &gt; 100,000 cells/mm3. Should not increase significantly (this would indicate a traumatic tap).  
<br/>3. RBC count: should not drop significantly. Usually &gt; 100,000 cells/mm3. Should not increase significantly (this would indicate a traumatic tap).  
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<br/>4. Protein - elevated due to blood breakdown products.  
<br/>4. Protein: elevated due to blood breakdown products.  
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<br/>5. Glucose - may be normal or reduced as RBCs metabolize glucose with time.  
<br/>5. Glucose: may be normal or reduced as RBCs metabolize glucose with time.  


[[Category:Subarachnoid Haemorrhage]]
[[Category:Subarachnoid Haemorrhage]]
[[Category:Neurosurgery]]
[[Category:Neurosurgery]]
[[Category:Surgery]]
[[Category:Surgery]]

Revision as of 11:53, 2 January 2023

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.