It would be good if OpenEhr RM would support the UCUM-properties fully
in the DvQuantity, then all problems regarding units would be over for
the next 20 years, and no maintenance on customer or OpenEHR-foundation
side is needed. UCUM is, I think, widely regarded as the most important
unit-registration system.
I haven't thought about which changes are needed to do this, sorry for
that, but I am sure the community is very well able to handle this.
By the way, if someone needs a UCUM-library for Golang, I have written
one in open source, find it here:
https://github.com/BertVerhees/ucum
Grahame Grieve and some FHIRT enthousiasts have written one for Java:
https://github.com/FHIR/Ucum-java
Best regards
Bert
On 24-01-18 10:52, Bakke, Silje Ljosland wrote:
Hi all,
I’m working on representing medication strengths in archetypes at the
moment. Most medications are thankfully measured in SI units such as
mg/ml or mg/{dose unit}, but others use arbitrary units that are not
derived from any other physical dimensional units. Examples of these
are standardized quality units (SQ-U), focus forming units (FFU),
European and American pharmacopoeia units, anti factor Xa units, or
international units (IU). There are seemingly an unlimited number of
these units, and they apparently make up new ones as they go along
(ref: SQ-T and SQ-HDM). See
http://unitsofmeasure.org/ucum.html#para-45 for more.
UCUM has a generic way of representing these, as “[arb’u]{whatever}”
(arbitrary unit, name of the unit), but openEHR doesn’t seem to have a
property in its Quantity data type for them. Could it be a possibility
to add an “Arbitrary” property to the openEHR support terminology for
unit properties?
Also, is it ok to model Quantity elements with a property set but the
units left unconstrained? I’ve just started trying to add these units
to an archetype (as a concentration, so got around the property
issue), and it’s just a never ending task.
Kind regards,
*Silje Ljosland Bakke*
**
Information Architect, RN
Coordinator, National Editorial Board for Archetypes
Nasjonal IKT HF, Norway
Tel. +47 40203298
Web: http://arketyper.no <http://arketyper.no/>/ Twitter:
@arketyper_no <https://twitter.com/arketyper_no>
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