Dipak Kalra wrote:
> Dear All,
>
> Pathologists and laboratory message standards developers have over many
> years made clear to me that it is always good practice to include the
> applicable normal range with individual instances of observed values,
> since those ranges are not fixed across measurement methods, devices,
> organisations or over time. Published reference ranges in clinical
> textbooks etc. are only a guide for those tests in which the variation
> is nowadays quite small.
>
> For this reason, right from Synapses days - a decade ago! - , we have
> not sought to put reference ranges into the archetype specification, but
> (as Tom has stated) only to ensure that the archetype caters for the
> inclusion of reference range instances along with the observed value(s).
>
> With best wishes,
>
> Dipak
> ________________________________________________________
> Dr Dipak Kalra
> Clinical Senior Lecturer in Health Informatics
> CHIME, University College London
> Holborn Union Building, Highgate Hill, London N19 5LW
> Direct Line: +44-20-7288-3362
> Fax: +44-20-7288-3322
> Web site: http://www.chime.ucl.ac.uk <http://www.chime.ucl.ac.uk/>
>
>
>
