K-Check tablet serum control

[milesd3 5]

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

[Moyer 0]

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

[milesd3 5]

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. 

[hippie_chick67 0]

Bio-Rad Serum Volatiles. Level 1 is negative. Level 2 is positive. We run them daily. We only do serum ketones.

 

[milesd3 5]

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

[mmmirza 1]

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)

[mmmirza 1]

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)