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15
Klinisk Kjemi i Norden 1, 2002
from, the comparison method results. The bias was
on average -2 % or -3 g/L.
With capillary samples the bias was about the same
as with venous samples. However, the haemoglobin
concentrations in capillary puncture blood often
deviate from that in the corresponding venous blood
and the imprecision is often higher with capillary
samples. For these reasons, B-Haemoglobin results
from capillary samples are less reliable. This is valid
not only for Biotest, but for all instruments using
capillary samples for measuring B-Haemoglobin.
The testers thought that Biotest was quick and easy
to use.
Comment to the report from the manufacturer
"Biotest Medizintechnik GmbH has adjusted the
routine for calibration of the Biotest photometers
after the SKUP evaluation. The new procedure was
implemented before the launch of the system in
Scandinavia. The adjustment corresponds to 1,5 %
higher haemoglobin values, which is in accordance
with the SKUP evaluation results."
The complete Biotest evaluation report
is available at www.uib.no/isf/noklus/skup/
