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Example Observation/f205 (Turtle)

Orders and Observations Work GroupMaturity Level: N/AStandards Status: InformativeCompartments: Device, Encounter, Patient, Practitioner, RelatedPerson

Raw Turtle (+ also see Turtle/RDF Format Specification)

Real-world patient - estimated gfr

@prefix fhir: <http://hl7.org/fhir/> .
@prefix loinc: <https://loinc.org/rdf/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sct: <http://snomed.info/id/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

# - resource -------------------------------------------------------------------

[a fhir:Observation ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:id [ fhir:v "f205"] ; # 
  fhir:identifier ( [
     fhir:system [ fhir:v "https://intranet.aumc.nl/labvalues"^^xsd:anyURI ] ;
     fhir:value [ fhir:v "1304-03720-eGFR" ] #    Does not exist   
  ] ) ; # 
  fhir:status [ fhir:v "final"] ; #    eGFR was measured on April fourth   
  fhir:code [
     fhir:coding ( [
       a loinc:33914-3 ;
       fhir:system [ fhir:v "http://loinc.org"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "33914-3" ] ;
       fhir:display [ fhir:v "Glomerular filtration rate/1.73 sq M.predicted [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD)" ]
     ] ) #    Kind of observation = eGFR   
  ] ; # 
  fhir:subject [
     fhir:reference [ fhir:v "Patient/f201" ] ;
     fhir:display [ fhir:v "Roel" ]
  ] ; # 
  fhir:issued [ fhir:v "2013-04-04T14:34:00+01:00"^^xsd:dateTime] ; # 
  fhir:performer ( [
     fhir:reference [ fhir:v "Practitioner/f202" ] ;
     fhir:display [ fhir:v "Luigi Maas" ]
  ] ) ; # 
  fhir:interpretation ( [
     fhir:text [ fhir:v "interpretation of results should be assigned based upon the level of kindey function" ]
  ] ) ; #   no value element since have only component values and unable to interpret results needs clinical interpretation  
  fhir:note ( [
     fhir:text [ fhir:v "GFR estimating equations developed by the Modification of Diet in Renal Disease (MDRD) Study Group and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)...." ]
  ] ) ; # 
  fhir:method [
     fhir:coding ( [
       a sct:702668005 ;
       fhir:system [ fhir:v "http://snomed.info/sct"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "702668005" ] ;
       fhir:display [ fhir:v "MDRD" ]
     ] ) #    Method was MDRD   
  ] ; #    The observation is complete   ,    No reliability concerns   
  fhir:component ( [
     fhir:code [
       fhir:coding ( [
         a loinc:48643-1 ;
         fhir:system [ fhir:v "http://loinc.org"^^xsd:anyURI ] ;
         fhir:code [ fhir:v "48643-1" ] ;
         fhir:display [ fhir:v "Glomerular filtration rate/1.73 sq M.predicted among blacks [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (MDRD)" ]
       ] ) #    Kind of observation = eGFR for AA   
     ] ;
     fhir:value [
       a fhir:Quantity ;
       fhir:value [ fhir:v "60"^^xsd:decimal ] ; #    eGFR=54mL\/min\/1.73m2   
       fhir:comparator [ fhir:v ">" ] ;
       fhir:unit [ fhir:v "mL/min/1.73m2" ] ;
       fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "mL/min/{1.73_m2}" ]
     ] ;
     fhir:referenceRange ( [
       fhir:low [
         fhir:value [ fhir:v "60"^^xsd:decimal ] ;
         fhir:unit [ fhir:v "mL/min/1.73m2" ] ;
         fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
         fhir:code [ fhir:v "mL/min/{1.73_m2}" ]
       ] ;
       fhir:appliesTo ( [
         fhir:text [ fhir:v "non-black/african-american" ]
       ] ) ;
       fhir:age [
         fhir:low [
           fhir:value [ fhir:v "18"^^xsd:decimal ] ;
           fhir:unit [ fhir:v "yrs" ] ;
           fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
           fhir:code [ fhir:v "a" ]
         ]
       ]
     ] )
  ] [
     fhir:code [
       fhir:coding ( [
         a loinc:48642-3 ;
         fhir:system [ fhir:v "http://loinc.org"^^xsd:anyURI ] ;
         fhir:code [ fhir:v "48642-3" ] ;
         fhir:display [ fhir:v "GFR/BSA pr.non blk SerPlBld MDRD-ArV" ]
       ] ) #    Kind of observation = eGFR for non AA   
     ] ;
     fhir:value [
       a fhir:Quantity ;
       fhir:value [ fhir:v "60"^^xsd:decimal ] ; #    eGFR=54mL\/min\/1.73m2   
       fhir:unit [ fhir:v "mL/min/1.73m2" ] ;
       fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "mL/min/{1.73_m2}" ]
     ] ;
     fhir:referenceRange ( [
       fhir:low [
         fhir:value [ fhir:v "60"^^xsd:decimal ] ;
         fhir:unit [ fhir:v "mL/min/1.73m2" ] ;
         fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
         fhir:code [ fhir:v "mL/min/{1.73_m2}" ]
       ] ;
       fhir:age [
         fhir:low [
           fhir:value [ fhir:v "18"^^xsd:decimal ] ;
           fhir:unit [ fhir:v "yrs" ] ;
           fhir:system [ fhir:v "http://unitsofmeasure.org"^^xsd:anyURI ] ;
           fhir:code [ fhir:v "a" ]
         ]
       ]
     ] )
  ] )] . #    The MDRD equation does require race (African American or non-African American), which also might not be readily available. For this reason, eGFR values for both African Americans and non-African Americans are reported. so use component elements here  

# -------------------------------------------------------------------------------------


Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.