Have you ever pricked your finger or arm only to find that you have to squeeze and squeeze to get a blood droplet? If this ever happens to you, it is important to know that the blood droplet will give you inaccurate information. The meter will actually show you a "false-low".
What happens is when one works hard to squeeze out a sample the platelets aggregate and dilute the sample. This means the diluted sample has less glucose than is currently running through the blood stream. I have found 40mg/dl to 70mg/dl differences between a squeezed draw and a "normal" draw. Before I knew this I had occasions where I would use the hard-to-get sample, find that I am low (according to the meter), treat my hypo with the 15-rule, and then re-test only to find that my blood sugar is high. It's not surprising as I acted on incorrect information.
Now that I am aware of this potential iI have modified my regimen. I no longer waste a $1.25 strip when I know it's a "bad" draw. Instead I just re-prick another finger and use the "good" draw. This has saved me from acting on inaccurate information as well as saved me strips/money and lowered some of my frustration. :)
Hope this is useful!
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