Our spectrophotometer outputs net OxyHb Absorbance (410 - 418)
and net Bili absorbance (476)
We input these, with CSF Protein, Serum Protein and Serum Bili into an Access Form which then calculates which of the 8 standard messages/states to report.
Yes, there has to be a manual input step, but it gets over not having a spectrophotometer that does it itself.
Michael
-----Original Message-----
From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of Peadar McGing
Sent: 08 December 2010 15:15
To: [log in to unmask]
Subject: xanthochromia testing
Dear colleagues,
We are setting up xanthochromia testing on a Cary 1 scanning
spectrophotometer. We have it set up to run the scan and we can get it to
print out the scan onto graph paper.
The instrument software is not designed for xanthochromia testing and will
not allow us to insert the tangent line and calculate the appropriate peak
heights.
The company looking after the Cary do not have software for xanthochromia
and it could be very expensive getting them to write such software. For the
one software package we have found (from Northern Star) we are told it will
only run on their own spectrophotometers.
We would be very interested in hearing from some of the many labs testing
for xanthochromia as to how you translate a scan into a result -
particularly what software you use and its availability and what
spectrophotometer you have. We would be especially interested if anyone is
using a Cary spectrophotometer.
Thanks in advance.
best wishes.
Peadar
Dr Peadar McGing, FRCPath EurClinChem,
Principal Biochemist,
Biochemistry Dept., Mater Misericordiae University Hospital,
Eccles Street, Dublin 7, Ireland.
Tel: (+353 1)8032374; Fax: (+353 1)8034781.
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