<Observation xmlns="http://hl7.org/fhir">
    <id value="acme-product-observation-VALID" />
    <meta>
        <versionId value="1189" />
        <lastUpdated value="2016-03-09T15:29:58.419+00:00" />
        <profile value="https://fake-acme.org/fhir/StructureDefinition/ACME-product-observation-lab" />
    </meta>
    <status value="final" />
    <category>
        <coding>
            <system value="http://terminology.hl7.org/CodeSystem/observation-category" />
            <code value="laboratory" />
            <display value="Laboratory" />
        </coding>
        <text value="Laboratory" />
    </category>
    <code>
        <coding>
            <system value="http://loinc.org" />
            <code value="789-8" />
            <display value="RBC # Bld Auto" />
        </coding>
        <text value="RBC # Bld Auto" />
    </code>
    <subject>
        <reference value="Patient/example" />
        <display value="Amy Shaw" />
    </subject>
    <effectiveDateTime value="2005-07-05" />
    <valueQuantity>
        <value value="4.58" />
        <unit value="10*6/uL" />
        <system value="http://unitsofmeasure.org" />
    </valueQuantity>
    <referenceRange>
        <low>
            <value value="4.1" />
            <unit value="10*6/uL" />
            <system value="http://unitsofmeasure.org" />
            <code value="10*6/uL" />
        </low>
        <high>
            <value value="6.1" />
            <unit value="10*6/uL" />
            <system value="http://unitsofmeasure.org" />
            <code value="10*6/uL" />
        </high>
        <appliesTo>
            <coding>
                <system value="http://terminology.hl7.org/CodeSystem/referencerange-meaning" />
                <code value="normal" />
                <display value="Normal Range" />
            </coding>
            <text value="Normal Range" />
        </appliesTo>
    </referenceRange>
</Observation>