milesd3 2 Report post Posted June 20 Has anyone found a QC material to use with the K-check tablet? we are currently using urine controls but the bulk of our ketone testing is on serum. Bio-Rad makes one for use on some chemistry analyzer but when I talked to them about it they said it was unsuitable for the K-check tablet stating that it made a speckled pattern on the tablet rather than the solid purple a positive patient would leave. JCAHO seems to be concerned about "matrix" as we found out 20 years ago when we were only using urine controls for pregnancy kit tests. Thanks Share this post Link to post Share on other sites
Moyer 0 Report post Posted June 21 We have been using K-check tablets since the Acetest tablets were discontinued. We had been using MAS Urine controls for the Acetest and back then, MAS did not have ranges for the K-Check. I did a study between the two methods as they recommended. Now MAS has ranges and we still use those controls for the K-check and acetone testing. We have always used urine controls and at not point did we use serum controls. We mostly do serum acetone testing as well. There is a procedure in the K-check package insert for making a positive control but it does not indiciate that you need to use serum for controls. Hope that helps Share this post Link to post Share on other sites
milesd3 2 Report post Posted July 11 On 6/21/2017 at 9:23 AM, Moyer said: We have been using K-check tablets since the Acetest tablets were discontinued. We had been using MAS Urine controls for the Acetest and back then, MAS did not have ranges for the K-Check. I did a study between the two methods as they recommended. Now MAS has ranges and we still use those controls for the K-check and acetone testing. We have always used urine controls and at not point did we use serum controls. We mostly do serum acetone testing as well. There is a procedure in the K-check package insert for making a positive control but it does not indiciate that you need to use serum for controls. Hope that helps Thanks Moyer yes I read the insert and actually talked to a nice gentleman there about the same thing as the instructions in the insert basically are what the urine control would be. He told me I could experiment with different volumes of acetone in ketone free serum and develop my own control but that seems like a lot of work and extra use of the tablet. Our pathologist just said to wait and see what JCAHO said if they indeed say anything. Share this post Link to post Share on other sites
