Years ago, my self-test results correlated well with blood draw results.
But his hasn't happened during the last 2+ years. The difference varied from about one full point (not tenths of a point) to a difference as high as 3 points.
I started a thread about going to the FDA about a lab that was consistently high. I'm still waiting to hear back from them.
My recent stay in the hospital revealed a similar difference between lab and meter. A 3.0 on my meter one day became a 4.7 in the hospital the next day.
So - I got to wondering: is there a blood factor of some sort that might account for the difference between meter and lab? I know that high hematocrit can influence the accuracy of the Coaguchek XS, but I'm wondering if, duing the last two years, while my heart rhythm was probably getting continuously worse, that something in my blood or plasma might have accounted for different results - or, perhaps, different reactions to the reagent.
Have any of you (Vitdoc or others) heard of such a thing?
But his hasn't happened during the last 2+ years. The difference varied from about one full point (not tenths of a point) to a difference as high as 3 points.
I started a thread about going to the FDA about a lab that was consistently high. I'm still waiting to hear back from them.
My recent stay in the hospital revealed a similar difference between lab and meter. A 3.0 on my meter one day became a 4.7 in the hospital the next day.
So - I got to wondering: is there a blood factor of some sort that might account for the difference between meter and lab? I know that high hematocrit can influence the accuracy of the Coaguchek XS, but I'm wondering if, duing the last two years, while my heart rhythm was probably getting continuously worse, that something in my blood or plasma might have accounted for different results - or, perhaps, different reactions to the reagent.
Have any of you (Vitdoc or others) heard of such a thing?
