<Observation xmlns="http://hl7.org/fhir">
    <id value="core-examples-Observation-example49" />
    <meta>
        <versionId value="1" />
        <lastUpdated value="2016-09-08T11:58:32.42+00:00" />
    </meta>
    <text>
        <status value="generated" />
        --- We have skipped the narrative for better readability of the resource ---
    </text>
    <identifier>
        <system value="https://intranet.aumc.nl/labvalues" />
        <value value="1304-03720-eGFR" />
    </identifier>
    <status value="final" />
    <code>
        <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>
    <interpretation>
        <text value="interpretation of results should be assigned based upon the level of kindey function" />
    </interpretation>
    <comments 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)...." />
    <method>
        <coding>
            <system value="http://snomed.info/id" />
            <code value="702668005" />
            <display value="MDRD" />
        </coding>
    </method>
    <component>
        <code>
            <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>
            <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>
            <age>
                <low>
                    <value value="18" />
                    <unit value="yrs" />
                    <system value="http://unitsofmeasure.org/" />
                    <code value="a" />
                </low>
            </age>
        </referenceRange>
    </component>
    <component>
        <code>
            <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>
            <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>