Can we not work on a UNITS module where a test can be attached to a number
of units where the conversion is not available. A clinician does not want to
have to relearn the unit for the convenience of the application.
Bhupinder
----- Original Message -----
From: "Sam Heard" <sam.he...@bigpond.com>
To: "Openehr-Technical" <openehr-technical at openehr.org>
Sent: Wednesday, October 22, 2003 4:02 PM
Subject: Pathology requirements UNITS
> UNITS
>
> There are a lot of units out there - it has been our idea to build a
> constraint model on units based on the property being measured. A good
> example is frequency can be '/{time unit}' (e.g. /min, /hr, /s) or 'Hz'.
It
> is hoped that we can translate from one to the other as much as possible
on
> this basis.
>
> It has come to my attention just how many units are out there and that
some
> units are not translatable to another unit even when the property is the
> same without further information. The best known example is gm percent -
> which is the same as gm/100ml or gm/dl. This is a concentration but it is
> not possible to know the amount of substance (moles) without knowing the
> molecular weight of the substance. This means we will have to have units
> available in a property that are not translatable. We could separate these
> to MASS CONCENTRATION and CONCENTRATION as some have done - but I think
> clinicians will want to choose from as small as list as possible.
>
> We need some work done in this area and there are a number of documents
> available to get this as tidy as we can.
>
> Cheers, Sam
> ____________________________________________
> Dr Sam Heard
> Ocean Informatics, openEHR
> Co-Chair, EHR-SIG, HL7
> Chair EHR IT-14-9-2, Standards Australia
> Hon. Senior Research Fellow, UCL, London
>
> 105 Rapid Creek Rd
> Rapid Creek NT 0810
>
> Ph: +61 417 838 808
>
> sam.heard at bigpond.com
>
> www.openEHR.org
> www.HL7.org
> __________________________________________
>
> -
> If you have any questions about using this list,
> please send a message to d.lloyd at openehr.org
>
-
If you have any questions about using this list,
please send a message to d.lloyd at openehr.org
