• You can use any finger for the
fingerstick. The recommended
site is the one shown on the
following image.
• Place the lancing device firmly
against the finger and press the
button. Press the base of the
finger gently until a drop of
blood forms. Do not press the
fingerstick site excessively or let
the drop of blood smear on
the finger. Before placing the
drop of blood on the Chip,
make sure that it has the
right size and a spherical
shape. Right size means that
it will provide a remnant.
Pressing the fingerstick
site may accelerate the
process of coagulation
or release of interstitial fluid into the sample which
may cause incorrect results.
• Apply the drop on the Chip immediately, in contact with the
entry channel.
11
3.3 OBTAINING AND APPLYING THE CAPILLARY
BLOOD SAMPLE
The steps to obtain and apply a capillary blood sample
correctly are detailed below:
• Read the instructions of the
fingersticking devices.
• Hands should be warmed
before conducting the
fingerstick. You can achieve this
by different means: keeping
hands below your waist,
massaging your finger softly,
washing your hands with hot
water, etc.
• The fingerstick site must be clean, completely dry and free
of contaminants. Washing your hands with warm water and
soap is recommended. If disinfecting with alcohol or some
other disinfecting solution, you must thoroughly dry the area
to remove any traces of substances that might interfere with
the result. Dry with a clean and dry gauze and never use the
same one you used to apply the disinfectant.
Any alcohol contamination (disinfectants, shaving
creams, etc.), lotions or sweat on the fingerstick area
or the blood sample may cause incorrect results.
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