Posted June 20, 20178 yr comment_70131 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
June 21, 20178 yr comment_70143 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
July 11, 20178 yr Author comment_70277 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.
October 19, 20177 yr comment_71257 Bio-Rad Serum Volatiles. Level 1 is negative. Level 2 is positive. We run them daily. We only do serum ketones.
October 21, 20177 yr Author comment_71285 On 10/19/2017 at 12:18 PM, hippie_chick67 said: Bio-Rad Serum Volatiles. Level 1 is negative. Level 2 is positive. We run them daily. We only do serum ketones. Cool I talked to them sometime ago and they told me their control was "not" acceptable for use with the tablet because it makes a speckled pattern on the tablet rather than the solid purple that serum does on the tablet. Have they reformulated the control?? Thanks
September 12, 20186 yr comment_74575 K-CHECK Serum controls are now available from Fisher The Catalog number is: NC1551709 and the controls consist of 2 sets of negative, low pos and Hi pos. (Total 6 vials)
September 12, 20186 yr comment_74576 K-CHECK Serum controls are now available from Fisher The Catalog number is: NC1551709 and the controls consist of 2 sets of negative, low pos and Hi pos. (Total 6 vials)
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