1
vertex
diagnostics
STEP 3 Get a drop of blood
Select the puncture site either in finger or in other parts (AST). Clean the
puncture site with 70% alcohol cotton and let it air-dry.
Fingertip
Hold the lancing device firmly against the
side of your finger. Press the release but
-
ton. You will hear a click, indicating that the
puncture is complete.
Sites other than fingertip
Please refer to the section of “About AST”
for available punctured sites.
After penetration, discard the first drop of
blood with a clean tissue paper or cotton.
Then gently squeeze the punctured area to
obtain blood. But be attention NOT to smear
the blood sample.
The volume of blood sample must be at least
0.7 microliter ( actual size).
Choose a different spot each time you test. Repeated punc-
tures in the same spot may cause soreness and calluses.
Before you decide to do AST, please consult your health profes-
sional firstly.
Since the first drop of blood usually contains tissue fluid and
serum, which may affect the test result, it is recommended to
be discarded.
PLEASE NOTE
