Assertion: observation | /r/CapableOf | use specimen
Facets:
Source sentences:
text: In the case of an observation using a specimen, this represents the start and end of the specimen collection (e.g. 24-hour Urine Sodium), but if the collection time is sufficiently short, this is reported as a point in time value (e.g. normal venipuncture).
text: The definition should be clear, meaning that it is understandable to any person who would want to conduct observations using the definition.