Is it true that home glucose monitor always shows 10% higher value of the actual lab result?

Question

Hi doctor,

My doctor says that glucose reading given by home monitor is always 10 % higher than the actual glucose reading from the laboratory test result. So, if my reading in the home monitor is 90 mg/dl, then my actual glucose is 81 (90 minus 9, 10% of 90). Is he right? Do you agree with this?

Answer 1

Hi,

Welcome to icliniq.com.

It is not like home glucose monitor will be 10 % higher. It can be higher or the same or even lower than laboratory results. In fact, in my observations, I have noticed it to be slightly lower than the laboratory test result. What I recommend is calibrate your home glucose monitor with the actual laboratory test report. I mean to say do the blood check immediately when the blood sample is being taken for laboratory test.

Is it true that home glucose monitor always shows 10% higher value of the actual lab result?

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