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

      <id value="example"/>
      <meta>
  <security>
    <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
    <code value="HTEST"/>
    <display value="test health data"/>
  </security>
</meta>
<identifier>
              <system value="http://goodcare.org/devicemetric/id"/>
              <value value="345675"/>
      </identifier>
      <type>
              <coding>
                      <system value="urn:iso:std:iso:11073:10101"/>
                      <code value="150456"/>
                      <display value="MDC_PULS_OXIM_SAT_O2"/>
              </coding>
      </type>
      <unit>
              <coding>
                      <system value="urn:iso:std:iso:11073:10101"/>
                      <code value="262688"/>
                      <display value="MDC_DIM_PERCENT"/>
              </coding>
      </unit>
      <source>
              <reference value="Device/dev1"/>
      </source>
      <parent>
              <reference value="DeviceDefinition/dc102"/>
      </parent>
      <operationalStatus value="on"/>
      <color value="blue"/>
      <category value="measurement"/>
      <measurementPeriod>
              <repeat>
                      <frequency value="1"/>
                      <period value="1"/>
                      <periodUnit value="s"/>
              </repeat>
      </measurementPeriod>
      <calibration>
              <type value="two-point"/>
              <state value="calibrated"/>
              <time value="2016-12-28T09:03:04-05:00"/>
      </calibration>

</DeviceMetric>