<Observation xmlns="http://hl7.org/fhir">
  <id value="2898a68a-5152-49dc-abcf-cf5338b62059" />
  <meta>
    <versionId value="1" />
    <lastUpdated value="2016-12-16T14:33:01.404+00:00" />
  </meta>
  <text>
    <status value="generated" />
    <div xmlns="http://www.w3.org/1999/xhtml">2005-07-05: CO2 SerPl-sCnc = 24 mmol/L</div>
  </text>
  <status value="final" />
  <category>
    <coding>
      <system value="http://hl7.org/fhir/observation-category" />
      <code value="laboratory" />
      <display value="Laboratory" />
    </coding>
    <text value="Laboratory" />
  </category>
  <code>
    <coding>
      <system value="http://loinc.org/" />
      <code value="2028-9" />
      <display value="CO2 SerPl-sCnc" />
    </coding>
    <text value="CO2 SerPl-sCnc" />
  </code>
  <subject>
    <reference value="Patient/1134281" />
  </subject>
  <effectiveDateTime value="2005-07-05" />
  <valueQuantity>
    <value value="24.0" />
    <unit value="mmol/L" />
    <system value="http://unitsofmeasure.org/" />
  </valueQuantity>
  <referenceRange>
    <low>
      <value value="22.0" />
      <unit value="mmol/L" />
      <system value="http://unitsofmeasure.org/" />
      <code value="mmol/L" />
    </low>
    <high>
      <value value="29.0" />
      <unit value="mmol/L" />
      <system value="http://unitsofmeasure.org/" />
      <code value="mmol/L" />
    </high>
    <meaning>
      <coding>
        <system value="http://hl7.org/fhir/referencerange-meaning" />
        <code value="normal" />
        <display value="Normal Range" />
      </coding>
      <text value="Normal Range" />
    </meaning>
  </referenceRange>
</Observation>