In 2012 a number of ISO standards were published on the “Identification of medicinal products” When I recall correctly there is one that deals with the representation of dose forms, units of presentation and route of administration.
Jan Talmon > On 19 mei 2016, at 10:19, Gerard Freriks (privé) <gf...@luna.nl> wrote: > > An alternative for dealing with semantic in archetypes is dealing with > semantics in coding systems like SNOMED. > > The consequence is that SNOMED must be a complete Medicinal Product Formulary. > I have doubts whether this is a good idea. > > Many countries have different specific formularies. > I like to reserve SNOMED-CT to use as any dictionary with universal lemma’s, > concepts. > Each country will have its own maintained Formulary. > A formulary that changes because of the marketing whims of pharmaceutical > companies. > > > Gerard Freriks > +31 620347088 > gf...@luna.nl <mailto:gf...@luna.nl> >> On 19 mei 2016, at 10:09, Ian McNicoll <i...@freshehr.com >> <mailto:i...@freshehr.com>> wrote: >> >> Hi Thomas, >> >> In the UK (and ? Aus/NZ), we would not use arbitrary units in UCUM for dose >> units because the latter are expressed as SNOMED terms, and are used in >> conjunction with the SNOMED-based dm+d (or AMT) drug dictionary to compute >> actual doses/amounts where possible. >> >> e.g. >> >> 318421004 | Atenolol 100mg tablets | >> >> via dm+d allows us to infer that 1 tab (in this case) = 100mg >> >> http://dmd.medicines.org.uk/DesktopDefault.aspx?VMP=318421004&toc=nofloat >> <http://dmd.medicines.org.uk/DesktopDefault.aspx?VMP=318421004&toc=nofloat> >> >> and allows us to do maximum daily dose calculation, at least against a >> defined subset of such 'dose units'. >> >> in other cases the dose unit strength will be defined as part of the >> medication order - we have a 'Strength' element in the medication order >> archetype for just such a purpose. >> >> I don't think we need to be able to define the unit strength as part of the >> quantity datatype. >> >> Ian >> >> Dr Ian McNicoll >> mobile +44 (0)775 209 7859 >> office +44 (0)1536 414994 >> skype: ianmcnicoll >> email: i...@freshehr.com <mailto:i...@freshehr.com> >> twitter: @ianmcnicoll >> >> >> Co-Chair, openEHR Foundation ian.mcnic...@openehr.org >> <mailto:ian.mcnic...@openehr.org> >> Director, freshEHR Clinical Informatics Ltd. >> Director, HANDIHealth CIC >> Hon. Senior Research Associate, CHIME, UCL >> >> On 19 May 2016 at 08:24, Thomas Beale <thomas.be...@openehr.org >> <mailto:thomas.be...@openehr.org>> wrote: >> Hi Gerard, >> they actually could be, but whenever this discussion comes up, no-one >> proposes it. I'm not sure if I would either, because these arbitrary units >> are still not computable in general, but 'dose units' can be made computable >> but only with some extra data fields, i.e. you need both the quantity of >> dose in 1 tablet/capsule etc, and also number of tablet/capsule etc. So the >> structural model is different anyway. >> >> I think the other problem with using UCUM arbitrary units is that people / >> orgs want to control the names of medicinal delivery products ('tablet' etc) >> in a terminology, which is reasonable, but doesn't fit so well with UCUM. >> >> - thomas >> >> On 19/05/2016 08:11, "Gerard Freriks (privé)" wrote: >>> Thomas, >>> >>> All are Units of a different kind. >>> >>> SI defines: Units of Measure, and Units of Quantity in the scientific >>> domain. >>> >>> There are also Units of Time: minute, hour, etc. >>> >>> When I think of tablets, capsule, etc. we will call these Units of >>> Medicinal Product Dose. >>> Isn’t in UCUM this an example of Arbitrary Units? >>> <>3.2 >>> ARBITRARY UNITS >>> <>§24 arbitrary units ■1 Arbitrary or procedure defined units are >>> units whose meaning entirely depends on the measurement procedure (assay). >>> These units have no general meaning in relation with any other unit in the >>> SI. Therefore those arbitrary semantic entities are called arbitrary units, >>> as opposed to proper units. The set of arbitrary units is denoted A, where >>> A∩ U = {}. ■2 An arbitrary unit has no further definition in the semantic >>> framework of The Unified Code for Units of Measure ■3 Arbitrary units are >>> not “of any specific dimension” and are not “commensurable with” any other >>> unit. >>> >>> Until version 1.6 The Unified Code for Units of Measure has dealt with >>> arbitrary units as dimensionless, but as an effect the semantics of The >>> Unified Code for Units of Measure made all arbitrary units commensurable. >>> Since version 1.7 of The Unified Code for Units of Measure it is no longer >>> possible to convert or compare arbitrary units with any other arbitrary >>> unit. >>> >>> <>§25 operations on arbitrary units ■1 Any term involving arbitrary >>> units, is itself an arbitrary unit and is not comparable with any other >>> arbitrary unit or term. >>> >>> <>§26 definition of arbitrary units ■1 Arbitrary units are marked in >>> the definition tables for unit atoms by a bullet (‘•’) in the column titled >>> “value” and a bullet in the column titled “definition”. >>> >>> >>> >>> Gerard Freriks >>> +31 620347088 <tel:%2B31%20620347088> >>> <mailto:gf...@luna.nl>gf...@luna.nl <mailto:gf...@luna.nl> >> >> _______________________________________________ >> openEHR-technical mailing list >> openEHR-technical@lists.openehr.org >> <mailto:openEHR-technical@lists.openehr.org> >> http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org >> >> <http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org> >> >> _______________________________________________ >> openEHR-technical mailing list >> openEHR-technical@lists.openehr.org >> <mailto:openEHR-technical@lists.openehr.org> >> http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical@lists.openehr.org > http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org
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