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A 44-year-old member asked:

Could blood sugar measure give you a false reading?

1 doctor answer1 doctor weighed in
Dr. Thomas Knecht
A Verified Doctoranswered
32 years experience
No: Hi. Blood glucose is measured enzymatically, and the enzymes used have very high specificity for glucose, so no other sugars are measured. This does NOT refer to continuous glucose monitors, where, due to the relatively high voltage used to drive the reaction, acetaminophen (paracetamol) interferes with the reaction and is "read" as glucose.

Similar questions

A 42-year-old member asked:

Why does blood from different fingers give you a different blood sugar reading?

1 doctor answer4 doctors weighed in
Dr. David Geffner
Endocrinology 55 years experience
Should not: There is a difference in readings +/- a certain% even from the same finger done twice.
A 21-year-old female asked:

What is a normal reading for blood sugar?

2 doctor answers2 doctors weighed in
Dr. Robert Killian
General Practice 29 years experience
Blood sugar: It varies widely from 75 to 195.

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Last updated Sep 28, 2016


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