We are working on the ICUdata project in the Netherlands (https://www.icudata.nl/). Within ICUdata we are currently in the process of mapping our model to OMOP. One issue we are struggling with is that in our current data model we have some range measurements (see data concepts with range measurements below). The main issue is how to map those range measurements to OMOP. We discussed two options which both do not seem ideal. One option is to map the range measurements as single timestamps to OMOP Measurements. However, in this case there is no end_timestamp field in OMOP. For some data concepts an option would be to map range signals to procedure_occurence table. The issue here is that there is no value column. We found this old thread on a OMOP forum that seems to suggest using single timestamps for fluids.
Contacting Renske Los she suggest looking at device_exposure tabel, based on this part of the forum (Mapping Transfusion Data - #8 by bailey).
She also suggested to start a discussion here, and tagging. @Christian_Reich and @RenskeLos
The ICUdata concepts that have range signals:
Looking forward to your input/suggestions/experiences!