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Meter readings confusion
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<blockquote data-quote="Oldvatr" data-source="post: 1023668" data-attributes="member: 196898"><p>I too use trend analysis to base my major decisions on, I also use averages to detect and compensate for strip pack changes, However, as a driver on max dose of Gliclazide, I do need to be predictive when I get my readings so I can be confident of not having a hypo in the next hour or so. The other day, I had pre-hypo warnings, My main meter read 4.7, my backup meter read 6.5, While I was in the supermarket my hypo developed and I had to take evasive action. Checking my spreadsheet back at base, I found that my main meter had just changed strips, and was reading 1.6 mmol/L higher than it had been on the previous pack. Neither of my meters had given me a warning,and both apppeared to not meet lthe 0.8 mmol/L ISO requirement. Do I ditch them and hope that the replacement meters are better? Nope, they will suffer the same problem wrt stripchange,</p><p></p><p>I try to be careful, but can still be fooled. I have had misreads where the two meters differ by up to 10 mmol/L on the same blood drop. I have had repeat readings that reflect the same misread values, but then give more believable results on a third re-try. Where the error is so obviously a misread then it sticks out like a sore thumb (excuse the pun) but how often does it occur day to day, and which meter is misreading?</p><p></p><p>I think the problem is worse if the meter is reading higher than it should, This can mask a possible hypo approaching, or prompt an increased dose of insulin. My friend (T1D on pump) reacts immediately to his meter, and instantly ups his bolus if he gets a high reading. He is limited on strip allocation, so cannot afford to do much retesting. He averages a significant hypo at least once a week</p></blockquote><p></p>
[QUOTE="Oldvatr, post: 1023668, member: 196898"] I too use trend analysis to base my major decisions on, I also use averages to detect and compensate for strip pack changes, However, as a driver on max dose of Gliclazide, I do need to be predictive when I get my readings so I can be confident of not having a hypo in the next hour or so. The other day, I had pre-hypo warnings, My main meter read 4.7, my backup meter read 6.5, While I was in the supermarket my hypo developed and I had to take evasive action. Checking my spreadsheet back at base, I found that my main meter had just changed strips, and was reading 1.6 mmol/L higher than it had been on the previous pack. Neither of my meters had given me a warning,and both apppeared to not meet lthe 0.8 mmol/L ISO requirement. Do I ditch them and hope that the replacement meters are better? Nope, they will suffer the same problem wrt stripchange, I try to be careful, but can still be fooled. I have had misreads where the two meters differ by up to 10 mmol/L on the same blood drop. I have had repeat readings that reflect the same misread values, but then give more believable results on a third re-try. Where the error is so obviously a misread then it sticks out like a sore thumb (excuse the pun) but how often does it occur day to day, and which meter is misreading? I think the problem is worse if the meter is reading higher than it should, This can mask a possible hypo approaching, or prompt an increased dose of insulin. My friend (T1D on pump) reacts immediately to his meter, and instantly ups his bolus if he gets a high reading. He is limited on strip allocation, so cannot afford to do much retesting. He averages a significant hypo at least once a week [/QUOTE]
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