This page is part of the FHIR Specification (v5.0.0-draft-final: Final QA Preview for R5 - see ballot notes). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions 
. Page versions: R5 R4B R4 R3
Example Observation/f205 (Turtle)
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:text [
fhir:status [ fhir:v "generated" ] ;
fhir:div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: Observation</b><a name=\"f205\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource Observation "f205" </p></div><p><b>identifier</b>: id: 1304-03720-eGFR</p><p><b>status</b>: <span title=\" eGFR was measured on April fourth \">final</span></p><p><b>code</b>: Glomerular filtration rate/1.73 sq M.predicted [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#33914-3)</span></p><p><b>subject</b>: <a href=\"patient-example-f201-roel.html\">Patient/f201: Roel</a> "Roel"</p><p><b>issued</b>: 5 Apr 2013, 12:34:00 am</p><p><b>performer</b>: <a href=\"practitioner-example-f202-lm.html\">Practitioner/f202: Luigi Maas</a> "Luigi Maas"</p><p><b>interpretation</b>: <span title=\" no value element since have only component values and unable to interpret results needs clinical interpretation \">interpretation of results should be assigned based upon the level of kindey function <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> ()</span></span></p><p><b>note</b>: GFR estimating equations developed by the Modification of Diet in Renal Disease (MDRD) Study Group and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)....</p><p><b>method</b>: <span title=\" The observation is complete &#10; No reliability concerns \">MDRD <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#702668005)</span></span></p><blockquote><p><b>component</b></p><p><b>code</b>: Glomerular filtration rate/1.73 sq M predicted among blacks [Volume Rate/?Area] in Serum or Plasma by Creatinine-based formula (MDRD) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#48643-1)</span></p><p><b>value</b>: >60 mL/min/1.73m2<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL/min/{1.73_m2} = 'mL/min/{1.73_m2}')</span></p><h3>ReferenceRanges</h3><table class=\"grid\"><tr><td>-</td><td><b>Low</b></td><td><b>AppliesTo</b></td><td><b>Age</b></td></tr><tr><td>*</td><td>60 mL/min/1.73m2<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL/min/{1.73_m2} = 'mL/min/{1.73_m2}')</span></td><td>non-black/african-american <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> ()</span></td><td>18-? yrs</td></tr></table></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: Glomerular filtration rate/1.73 sq M predicted among non-blacks [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#48642-3)</span></p><p><b>value</b>: 60 mL/min/1.73m2<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL/min/{1.73_m2} = 'mL/min/{1.73_m2}')</span></p><h3>ReferenceRanges</h3><table class=\"grid\"><tr><td>-</td><td><b>Low</b></td><td><b>Age</b></td></tr><tr><td>*</td><td>60 mL/min/1.73m2<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL/min/{1.73_m2} = 'mL/min/{1.73_m2}')</span></td><td>18-? yrs</td></tr></table></blockquote></div>"
] ; #
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 or Plasma 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 "Glomerular filtration rate/1.73 sq M predicted among non-blacks [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD)" ]
] ) # 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.
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