23
Preparing the Puncture Site
Rubbing the puncture site before blood extraction has a significant
influence on the accuracy of your test results.
Blood from an alternate site that has not been rubbed exhibits a
measurably different glucose concentration than blood from the finger.
When the puncture site was rubbed prior to blood extraction, the
difference was significantly reduced.
•
“
Protection of Laboratory Workers from Occupationally Acquired
Infections; Approved Guideline-Third Edition
”
Clinical and Laboratory
Standards Institute (CLSI) M29-A3.
NOTE:
• Choose a different spot each time you test. Repeated punctures at the same
spot may cause soreness and calluses.
• It is recommended that you discard the first drop of blood as it might contain
tissue fluid, which may affect the test result.
●
Fingertip testing
Press the lancing device
ʼ
s tip firmly against the lower side of the patient's
fingertip. Press the release button to prick your finger, then a click
indicates that the puncture is complete.
Please follow the suggestions below before obtaining a drop of blood:
● Wash and dry your hands before starting.
● Rub the puncture site for about 20 seconds before penetration.
● Clean the puncture site using cotton moistened with 70% alcohol and
let it air dry
.
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