Dear List Readers

We recently did a CSF spectroscopy scan on a patient for ?SAH.

The results were:

Serum bilirubin         23umol/L

CSF bilirubin           0.016 AU

CSF protein             0.95 g/L

Serum protein           67 g/L

The uncorrected CSF bilirubin result is elevated. However, when corrected, using the formula published in the Ann Clin Biochem 2008;45:238-244, the NBA is 0.002 which is not elevated. 

Could someone please advise me on what is the correct procedure in this case – either to correct or not to correct the result since it makes a big difference to how the results are interpreted?

Thanks

John Beilby

Senior Scientist

PathWest Laboratory Medicine WA

Nedlands, Western Australia


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