US Core Implementation Guide, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 8.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/US-Core/ and changes regularly. See the Directory of published versions

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: MCV Example - XML Representation

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<Observation xmlns="http://hl7.org/fhir">
  <id value="cbc-mcv"/>
  <meta>
    <lastUpdated value="2005-07-05T15:29:58.597000+00:00"/>
    <profile
             value="http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-lab|8.0.0-ballot"/>
  </meta>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: Observation cbc-mcv</b></p><a name="cbc-mcv"> </a><a name="hccbc-mcv"> </a><a name="cbc-mcv-en-US"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Last updated: 2005-07-05 15:29:58+0000</p><p style="margin-bottom: 0px">Profile: <a href="StructureDefinition-us-core-observation-lab.html">US Core Laboratory Result Observation Profileversion: null8.0.0-ballot)</a></p></div><p><b>status</b>: Final</p><p><b>category</b>: <span title="Codes:{http://terminology.hl7.org/CodeSystem/observation-category laboratory}">Laboratory</span></p><p><b>code</b>: <span title="Codes:{http://loinc.org 787-2}">MCV</span></p><p><b>subject</b>: <a href="Patient-example.html">Amy Shaw</a></p><p><b>effective</b>: 2005-07-05</p><p><b>performer</b>: <a href="Practitioner-practitioner-1.html">Dr Ronald Bone</a></p><p><b>value</b>: 85 fL<span style="background: LightGoldenRodYellow"> (Details: UCUM  codefL = 'fL')</span></p><p><b>interpretation</b>: <span title="Codes:{http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation N}">Normal</span></p><h3>ReferenceRanges</h3><table class="grid"><tr><td style="display: none">-</td><td><b>Low</b></td><td><b>High</b></td><td><b>Type</b></td></tr><tr><td style="display: none">*</td><td>87.3 fL<span style="background: LightGoldenRodYellow"> (Details: UCUM  codefL = 'fL')</span></td><td>82.4 fL<span style="background: LightGoldenRodYellow"> (Details: UCUM  codefL = 'fL')</span></td><td><span title="Codes:{http://terminology.hl7.org/CodeSystem/referencerange-meaning normal}">Normal Range</span></td></tr></table></div>
  </text>
  <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="787-2"/>
      <display value="MCV [Entitic volume] by Automated count"/>
    </coding>
    <text value="MCV"/>
  </code>
  <subject>🔗 
    <reference value="Patient/example"/>
    <display value="Amy Shaw"/>
  </subject>
  <effectiveDateTime value="2005-07-05"/>
  <performer>🔗 
    <reference value="Practitioner/practitioner-1"/>
    <display value="Dr Ronald Bone"/>
  </performer>
  <valueQuantity>
    <value value="85"/>
    <unit value="fL"/>
    <system value="http://unitsofmeasure.org"/>
    <code value="fL"/>
  </valueQuantity>
  <interpretation>
    <coding>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/>
      <code value="N"/>
      <display value="Normal"/>
    </coding>
    <text value="Normal"/>
  </interpretation>
  <referenceRange>
    <low>
      <value value="87.3"/>
      <unit value="fL"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="fL"/>
    </low>
    <high>
      <value value="82.4"/>
      <unit value="fL"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="fL"/>
    </high>
    <type>
      <coding>
        <system
                value="http://terminology.hl7.org/CodeSystem/referencerange-meaning"/>
        <code value="normal"/>
        <display value="Normal Range"/>
      </coding>
      <text value="Normal Range"/>
    </type>
  </referenceRange>
</Observation>