9. Colony Count Observation - Healthedata1/OO-on-FHIR-Micro-Profile GitHub Wiki
This Profile on Observation defines the colony count observations for a culture.
Laboratories may Quantify the bacteria growth in culture using a variety of methods.
Based on DAF-Core/US-Core plus additional USlab (LRI) and US-Core Micro Report constraints (in italics):
Each Observation must include:
- a status
- a category code of ‘laboratory’
- micro category code as translation
- a LOINC code, which tells you what is being measured
- performing organization
- a patient
- a quantitative result value or a reason if there are no values
Each Gram stain Observation must include: must support:
(stuff from LRI OBX and OBR)
- an identifier (Filler/Placer) - Discuss whether this is a must support - not an LRI requirement
- a time indicating when the specimen was collected
- a time indicating when the measurement was reported
- the specimen
- a specimen rejection reason This is really a data absent reason and should go there instead of an extension on Obs - consider a DAR profile
- a referenceRange (discuss if needed)
(note: the LRI requirement for AOE vs results category is not needed for this profile since is implicitly a result profile)
Terminology considerations ( note need help from community to work these out)
- For
Observation.code
- extensible binding to a set LOINC Codes withCOMPONENT
=Colony count
- For UCUM units consider /uL or {CFU}/uL ( discuss )