Technical data

Testing blood glucose
70
Obtaining a blood drop
Use a new lancet each time you obtain blood.
This reduces the risk of infection and helps
ensure virtually pain-free blood sampling.
In general, all the fingers are suitable for obtaining
blood. Certain fingers can be unsuitable if, for example,
a skin or fingernail infection is present. We recommend
obtaining capillary blood from the side of a fingertip as
this registers the least pain (see black areas in the
illustration on the left).
The amount of blood that emerges at the puncture site
depends on the penetration depth setting and the
pressure used to hold the finger pricker against the
skin.
If you find when you perform the test that the

amount of blood is insufficient, press the finger
pricker more firmly against the skin next time. If you
still obtain insufficient blood, also increase the
penetration depth one setting at a time when you
perform your next tests.
If, on the other hand, you obtain too much blood,

reduce the penetration depth next time.
= Recommended sites for obtaining blood