In message <2D979C08FE21D511856B00508BAE7EEA044FCFC1@NLGMAIL>, Ian
Barlow <[log in to unmask]> writes
>
> Dear colleagues.
>
> To all Troponin T users out there (and expert cardiologists!).
>
> What are you all using as the upper reference limit for the Trop T
> assay?
>
> Do you use 0.01 - which is the figure quoted by Roche as being
> their 99th percentile? Or do you use 0.03 ( which is the
> concentration, according to Roche, where 10% CV is achieved)? Or
> are you using something else?
>
> Look forward to hearing from you.
>
> I apologise if this is "old business".
>
> Ian Barlow
> Scunthorpe
> UK
>
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We use a value of 0.05 on the basis of a multicentre study, published in Heart
It can be reliably measured at 10% CV and does not generate too many confusing
extra values
--
Paul Collinson
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