<?xml version=“1.0” encoding=“UTF-8”?> <Observation xmlns=“hl7.org/fhir”>

      <id value="f205"/>
      <meta>
  <security>
    <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
    <code value="HTEST"/>
    <display value="test health data"/>
  </security>
</meta>
<identifier>
              <system value="https://intranet.aumc.nl/labvalues"/><!--    Does not exist    --><value value="1304-03720-eGFR"/>
      </identifier><!--    eGFR was measured on April fourth    --><status value="final"/>
      <code><!--    Kind of observation = eGFR    --><coding>
                      <system value="http://loinc.org"/>
                      <code value="33914-3"/>
                      <display value="Glomerular filtration rate/1.73 sq M.predicted [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD)"/>
              </coding>
      </code>
      <subject>
              <reference value="Patient/f201"/>
              <display value="Roel"/>
      </subject>
      <issued value="2013-04-04T14:34:00+01:00"/>
      <performer>
              <reference value="Practitioner/f202"/>
              <display value="Luigi Maas"/>
      </performer><!--   no value element since have only component values and unable to interpret results needs clinical interpretation   --><interpretation>
              <text value="interpretation of results should be assigned based upon the level of kindey function"/>
      </interpretation>
      <note><text value="GFR estimating equations developed by the Modification of Diet in Renal Disease (MDRD) Study Group and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)...."/></note><!--    The observation is complete    --><!--    No reliability concerns    --><method><!--    Method was MDRD    --><coding>
                      <system value="http://snomed.info/sct"/>
                      <code value="702668005"/>
                      <display value="MDRD"/>
              </coding>
      </method><!--    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   --><component>
              <code><!--    Kind of observation = eGFR for AA    --><coding>
                              <system value="http://loinc.org"/>
                              <code value="48643-1"/>
                              <display value="Glomerular filtration rate/1.73 sq M predicted among blacks [Volume Rate/?Area] in Serum or Plasma by Creatinine-based formula (MDRD)"/>
                      </coding>
              </code>
              <valueQuantity><!--    eGFR=54mL/min/1.73m2    --><value value="60"/>
                      <comparator value="&gt;"/>
                      <unit value="mL/min/1.73m2"/>
                      <system value="http://unitsofmeasure.org"/>
                      <code value="mL/min/{1.73_m2}"/>
              </valueQuantity>
              <referenceRange>
                      <low>
                              <value value="60"/>
                              <unit value="mL/min/1.73m2"/>
                              <system value="http://unitsofmeasure.org"/>
                              <code value="mL/min/{1.73_m2}"/>
                      </low>
                      <appliesTo>
                              <text value="non-black/african-american"/>
                      </appliesTo>
                      <age>
                              <low>
                                      <value value="18"/>
                                      <unit value="yrs"/>
                                      <system value="http://unitsofmeasure.org"/>
                                      <code value="a"/>
                              </low>
                      </age>
              </referenceRange>
      </component>
      <component>
              <code><!--    Kind of observation = eGFR for non AA    --><coding>
                              <system value="http://loinc.org"/>
                              <code value="48642-3"/>
                              <display value="Glomerular filtration rate/1.73 sq M predicted among non-blacks [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD)"/>
                      </coding>
              </code>
              <valueQuantity><!--    eGFR=54mL/min/1.73m2    --><value value="60"/>
                      <unit value="mL/min/1.73m2"/>
                      <system value="http://unitsofmeasure.org"/>
                      <code value="mL/min/{1.73_m2}"/>
              </valueQuantity>
              <referenceRange>
                      <low>
                              <value value="60"/>
                              <unit value="mL/min/1.73m2"/>
                              <system value="http://unitsofmeasure.org"/>
                              <code value="mL/min/{1.73_m2}"/>
                      </low>
                      <age>
                              <low>
                                      <value value="18"/>
                                      <unit value="yrs"/>
                                      <system value="http://unitsofmeasure.org"/>
                                      <code value="a"/>
                              </low>
                      </age>
              </referenceRange>
      </component>

</Observation>