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Gluco Navii Lancing and Erroneous readings

T

T2 Woman

Active Member
Messages
25
Type of diabetes
Type 2
Treatment type
Tablets (oral)
Hi all. I purchased the Gluco Navii after much tooing and froing and did my first testing today. I found the lancing device even turned up to the highest setting of five wasn’t doing the trick of getting enough blood out at first ( wasting a load of test strips in the process) even trying alternative sites like fleshy back of hand. Has anyone else had this problem? Anyway after much warming of the hands etc I think they were too cold, I got a starting reading before food of 8.8. May need to cut carbs even further. I had a low carb meal not more than 20g of carbs and found that the first post food reading 2 hours later was 6.9, so I took another 7.5 then another 8.3. My question is were these readings all erroneous? Or is it possible I could actually have lower blood sugar after a meal than before I started? I am taking metformin slow release twice a day with food and I had taken one as advised with this meal. Earlier my meal was more carb heavy at lunch which could explain the higher starting point. I appreciate this is my first day of testing but any incite from members would be helpful. Thanks so much.
 
T2 Woman said:
My question is were these readings all erroneous?
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Blood sugar meters have an allowable accuracy of 15% so a reading of 7.5 can correspond to an actual reading between 6.5 and 8.5.

And it's entirely possible for your after lunch reading to be lower than your pre-lunch one (prepares to be corrected by some T2s :)).
 
If my meal is a good one (<10g carb) I can virtually guarantee that my post meal reading will be lower than pre-meal. That’s the 2 hour reading. I am usually unchanged at 30 mins, peak at 45-60 mins, back to baseline at 90 mins, and below baseline at 2 hours. I am assuming that’s because my pancreas is producing insulin OK, and my body responds to it OK.
 
As for not enough blood coming out, what works best for me (after the making sure your hands are warm etc) is to prick, and then put the thumb of your other hand in your palm, grabbing your hand, and move the thumb towards the finger you've just pricked. That way you're pushing the blood up to the tip. If you just squeeze the tip you're cutting off the blood from below the tip.

Another thing coming to mind is, are you sure you're holding the right part of your teststrip to the blood drop? It really needs only a very small drop, but it needs to go into the top end, between the flat layers, so not on the flat part of the test strip.
 
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My meter instructions say I should rub my finger for 20 seconds before pricking it, and that works well. Also as has been said, it helps to warm your hands first.
 
Antje77 said:
As for not enough blood coming out, what works best for me (after the making sure your hands are warm etc) is to prick, and then put the thumb of your other hand in your palm, grabbing your hand, and move the thumb towards the finger you've just pricked. That way you're pushing the blood up to the tip. If you just squeeze the tip you're cutting off the blood from below the tip.

Another thing coming to mind is, are you sure you're holding the right part of your teststrip to the blood drop? It really needs only a very small drop, but it needs to go into the top end, between the flat layers, so not on the flat part of the test strip.
Click to expand...
Hi Antje77. I think I got the hang of holding the test strip right eventually. Another thing that came to me today; I was squeezing my finger to get more blood out and I’ve read today that squeezing can cause false readings?
 
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