Do you believe your readings?

janeecee

Well-Known Member
Messages
248
Type of diabetes
Other
Treatment type
Diet only
I have a Bayer Contour Next USB and the SD Codefree and I have to say that the Codefree has been fairly consistent with the readings from the Contour, although it can sometimes give an erratic reading (as can all meters). The Codefree is certainly good enough for observing trends and working out how certain foods affect you, but for 'important' measurements, the Contour Next probably more reliable. More expensive to run though :-(


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Md.rose

Active Member
Messages
43
Type of diabetes
Type 2
Treatment type
Tablets (oral)
ISO guidelines state that blood glucose meters should provide results which fall between the upper and lower error bounds, given in the table below, 95% of the time:

Within ± 0.83 mmol/L of laboratory results at concentrations of under 4.2 mmol/L
Within ± 20% of laboratory results at concentrations of 4.2 mmol/L or more
ISO guidelines on blood glucose meter accuracy bounds
Test result
given Lower
bound Upper
bound
1.0 0.17 1.83
1.5 0.67 2.33
2.0 1.17 2.83
2.5 1.67 3.33
3.0 2.17 3.83
3.5 2.67 4.33
4.0 3.20 4.80
5.0 4.00 6.00
6.0 4.80 7.20
7.0 5.60 8.40
8.0 6.40 9.60
9.0 7.20 10.80
10.0 8.00 12.00
12.0 9.60 14.40
14.0 11.20 16.80
16.0 12.80 19.20
18.0 14.40 21.60
20.0 16.00 24.00


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Thommothebear

Well-Known Member
Messages
1,186
Type of diabetes
Type 2
Treatment type
Tablets (oral)
charon said:
Before every reading I wash my hands with soap and water and swab the area with rubbing alcohol. I assumed everyone would do this. Concerned about infection as well as contaminating the sample.


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I was specifically told not to use soap or alcohols rubs before testing, hot water only. Soap contains glycerin which is a sugar and alcohol residue skew readings for other reasons.


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Thommothebear

Well-Known Member
Messages
1,186
Type of diabetes
Type 2
Treatment type
Tablets (oral)
charon said:
Before every reading I wash my hands with soap and water and swab the area with rubbing alcohol. I assumed everyone would do this. Concerned about infection as well as contaminating the sample.


Sent from the Diabetes Forum App

I was specifically told not to use soap or alcohols rubs before testing, hot water only. Soap contains glycerin which is a sugar and alcohol residue skew readings for other reasons.


Sent from a melting iceberg. help!!!