I’ve been presented with a medication dosing use case that I haven’t seen before, and that I’m not certain how to model. The requirements are as follows:
- A structured dosage and timing is recorded, for example “20 mg three times a day”
- This dosage is based on a mental calculation by the prescriber, based on a parameter of the patient, for example weight, age or body surface.
- We need to be able to record, in a coded element, which parameter the dose is based on, and a free text comment about it.
I feel like this is a kind of very simple “dose formula”, where you don’t record an actual formula but just the main parameter of an approximate mental calculation. As such it’s related to the “Dose formula” element of the “Dosage” archetype (https://ckm.openehr.org/ckm/archetypes/1013.1.2751), but not quite the same thing.