I spoke to the lady on the Coaguchek helpline this morning about the discrepancies between the machine readings compared to venous sample readings. Although a little reluctant to admit there was a problem at first, I did find out that they are investigating but have not found the cause of any problem yet. She said it was happening with more than one batch, not just 311 which is the one I have.
She is going to send me some more strips and assured me that the fault was very unlikely to be with the actual machine. I did explain that the problem was endangering people’s lives.
She will also provide a form for me to complete and an address label to return the ones I have left in batch 311, although I have to provide my own Jiffy bag!
Not much help but at least you can get more strips from a different batch.