Operation – Part 1
20.08.2012 Page 24 of 42 Rev. 04
4.5.2 Sample preparation
Please follow the instructions in the packaging inserts for the reaction cups and
calibrator for sample preparation.
Please follow the following instructions additional to the above instructions:
When taking samples of capillary blood, the tissue
must not be squeezed under any circumstances.
This process leads to thinning of the blood sample
with cell fluid and, particularly with the
measurement of hemoglobin, leads to false results.
Suitable lancets should be used for taking capillary
blood and if necessary measures to increase
perfusion (such as massage of the appropriate area
of the skin) should be carried out to achieve a
sufficiently large sample.
When using non fluoride-stabilised sample material,
a 15-minutes period from taking the sample until
stabilisation with haemolysis system solution must
not be exceeded.
Taking capillary blood using an open-end capillary tube is described and shown
on the following page. Proceed in the same way with an end-to-end capillary
tube (the end-to-end capillary tube is NOT broken during this).
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