Blood Testing........

Hello to you all, and thanks for your interesting replies to my last question. I also have another question to ask. I was rewarded with an Accuchek Aviva Expert meter system shortly after completing DAFNE course, the settings were decided and entered into the system by the rep, and off I went believing all was ok. I found that on some occasions when things went wrong at bed time, my test results fell by 50% below the minimum threshold decided by the HCP, and entered by the Accuchek Rep. I then entered in to the meter my proposed CP amount to restore BG to the lowest setting as per HCP decision (Of which I have a copy of) to find that the bolus advisor gave me the advice to inject QA to reduce the BG Rise back to the level that was already too low. This sounds like I am babbling on a bit, but hopefully you can follow what I am on about !
This has happened on several occasions, and there was no active insulin at the time because it was all spent. Upon explaining this to the Accuchek Helpline, they requested that I carry out a control test, which was ok, and then advised me to make an appointment with the sales Rep to re-check the settings because nobody wanted the responsibility of giving me the correct information maybe. I was later told that a replacement meter would be sent whilst my Expert system was tested and analysed for issues. After a month wait, I discover that a full analysis can take up to 3 months to complete. So with this experience with Accuchek I now test with 2 meters when I get unusual readings and they are variable to say the least, also after getting 1 sample from 1 hand, another from the other hand there are also some variences. What is the right site to test from if these variences are true & how would you maintain CP to QA inputs? Sorry for a long one this time, but this concerns me, and may do the same to others if they tried it out.
Thanks again Guys and Girls.

I'm afraid meters are just not that accurate, They give you an approximation of your BG and can be affected by a range of factors. If you take a reading from two different points on the body you will most likely get variances in readings. You will definately get variances from different meters. The idea is the meter gives you a guide to your current BG NOT a scientific, laboratory reading. Look at the brightside, not so long ago all you could do was dip a strip in urine and get a colour change that gave you an even more vague reading. Technology moves forward and testing is getting better but its still not and probably never will be an exact science. But then your body is not an exact science, hence the fact it can cope with your BG's fluctuating all over the place without any major problems.
I can't comment on an 'expert' meter since I have never seen one let along used one. I guess they just make suggestions based on a set of parameters and given the 'source' is a variable baseline i.e your body, getting accurate results must be quite a challenge.