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

      <id value="f004"/><!--     urn:oid:2.16.840.1.113883.4.642.1.7     --><meta>
  <security>
    <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
    <code value="HTEST"/>
    <display value="test health data"/>
  </security>
</meta>
<identifier>
              <use value="official"/>
              <system value="http://www.bmc.nl/zorgportal/identifiers/observations"/>
              <value value="6326"/>
      </identifier>
      <status value="final"/>
      <code>
              <coding>
                      <system value="http://loinc.org"/>
                      <code value="789-8"/>
                      <display value="Erythrocytes [#/volume] in Blood by Automated count"/>
              </coding>
      </code>
      <subject>
              <reference value="Patient/f001"/>
              <display value="P. van de Heuvel"/>
      </subject>
      <effectivePeriod>
              <start value="2013-04-02T10:30:10+01:00"/>
              <end value="2013-04-05T10:30:10+01:00"/>
      </effectivePeriod>
      <issued value="2013-04-03T15:30:10+01:00"/>
      <performer>
              <reference value="Practitioner/f005"/>
              <display value="A. Langeveld"/>
      </performer>
      <valueQuantity>
              <value value="4.12"/><!--    Actually, 4.12E+12    --><unit value="10^12/L"/>
              <system value="http://unitsofmeasure.org"/>
              <code value="10*12/L"/>
      </valueQuantity>
      <interpretation>
              <coding>
                      <system value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/>
                      <code value="L"/>
                      <display value="Low"/>
              </coding>
      </interpretation><!--   this example demonstrates using the reference range text element for stuff that is not easily structured !  --><referenceRange>
              <text value=" 12-14 y Male: 4.4 - 5.2  x  10^12/L ; 12-14 y Female: 4.2 - 4.8  x  10^12/L ; 15-17 y Male: 4.6 - 5.4  x  10^12/L ; 15-17 y Female: 4.2 - 4.8  x  10^12/L ; 18-64 y Male: 4.6 - 5.4  x  10^12/L ; 18-64 y Female: 4.0 - 4.8  x  10^12/L ; 65-74 y Male: 4.3 - 5.3  x  10^12/L ; 65-74 y Female: 4.1 - 4.9  x  10^12/L       "/>
      </referenceRange>

</Observation>