Hi The quantity data type has the possibility of revealing changes that are unexpected. Let us say for example that you weigh someone and their weight is 80 Kg - and they tell you that they weighed 100 Kg 3 months ago. Or that a Hb was 151 and it is now 121 - still normal but has changed a lot and you may want to have this brought to your attention.
ALSO - we have not differentiated at the RM level between information from the clinician and that given by the patient. So OBSERVATION covers both - sure we can say where it came from but the weight example really shows that it may be from both. For this reason - I would like to see the Delta (or change) attribute to quantities to enable us to say if this measurement has gone up or down more than expected. Cheers, Sam ____________________________________________ Dr Sam Heard The Good Electronic Health Record Ocean Informatics, openEHR 105 Rapid Creek Rd Rapid Creek NT 0810 Ph: +61 417 838 808 sam.heard at flinders.edu.au www.gehr.org www.openEHR.org __________________________________________ - If you have any questions about using this list, please send a message to d.lloyd at openehr.org

