Observation-example-bloodpressure.xml

Blood Pressure Measurement (id = "blood-pressure")

Raw XML

<feed xmlns="http://www.w3.org/2005/Atom">
  <title>Blood Pressure Example</title>
  <id>urn:uuid:988fc332-b3a2-4c25-af3b-91b0171ec652</id>
  <link href="http://www.hl7.org/fhir/observation-example-bloodpressure.xml" rel="self"/>
  <updated>2014-01-30T22:35:23+11:00</updated>
  
  <!--   first entry: the single resource with combined
     narrative, and links to the 2 component resources   -->
  <entry>
    <title>Blood Pressure Observation</title>
    <!--   this id is purely arbitrary. It could have been a UUID, or something else   -->
    <id>http://acme.org/ehr/observations/34252345234</id>
    <updated>2014-01-30T22:35:23+11:00</updated>
    <author>
      <name>FHIR Project Team</name>
    </author>
    <content type="text/xml">
      <Observation xmlns="http://hl7.org/fhir">
        <text>
          <status value="generated"/>
          <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Systolic Blood pressure 107/60 mmHg (low)</div>
        </text>
        <name>
          <coding>
            <system value="http://loinc.org"/>
            <code value="55284-4"/>
            <display value="Blood pressure systolic &amp; diastolic"/>
          </coding>
        </name>
        
        <!--   an interpretation offered to the combination observation
        generally, it would only be appropriate to offer an interpretation
        of an observation that has no value if it has &quot;COMP&quot; (component)
        observations   -->        
        <interpretation>
          <coding>
            <system value="http://hl7.org/fhir/v2/0078"/>
            <code value="L"/>
            <display value="Below low normal"/>
          </coding>
          <text value="low"/>
        </interpretation>
        <appliesDateTime value="2012-09-17"/>
      
        <!--   for an observation with components, these cannot disagree with the flags on the components
           -->
        <status value="final"/>
        <reliability value="ok"/>
        
        <identifier>
          <system value="urn:ietf:rfc:3986"/>
          <value value="urn:uuid:187e0c12-8dd2-67e2-99b2-bf273c878281"/>
        </identifier>
        
        <subject>
          <reference value="Patient/example"/>
        </subject>
        <performer>
          <reference value="Practitioner/example"/>
        </performer>
        <related>
          <type value="has-component"/>
          <target>
            <reference value="http://acme.org/ehr/observations/34252345234-s"/>
          </target>
        </related>
        <related>
          <type value="has-component"/>
          <target>
            <reference value="http://acme.org/ehr/observations/34252345234-d"/>
          </target>
        </related>
      </Observation>
    </content>
    <summary type="xhtml">
      <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Systolic Blood pressure 107/60 mmHg (low)</div>
    </summary>
  </entry>

  <!--   Observation for systolic blood pressure: name, value, and flags   -->
  <entry>
    <title>Blood Pressure Observation</title>
    <!--   
      Most systems won't store systolic and diastolic observations separately.
      They'd usually be two fields in a database or something like that. The 
      FHIR interface treats these as separate observation for consistency 
      purposes (makes query easy). But that doesn't mean that the systems 
      have to really do that internally. This example implies a system that 
      appends -d or -s to the id of the base observation for the individual
      components. 

      This implies that you can operate on them separately, even though
      this would probably not be true. It would be up to the implementing 
      system to decide how to manage this (e.g. readonly, so there's no 
      update operations to worry about)
      -->
    <id>http://acme.org/ehr/observations/34252345234-s</id>
    <updated>2014-01-30T22:35:23+11:00</updated>
    <author>
      <name>FHIR Project Team</name>
    </author>
    <content type="text/xml">
      <Observation xmlns="http://hl7.org/fhir">
        <text>
          <status value="generated"/>
          <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Systolic Blood pressure 107 mmHg (low)</div>
        </text>
        <!--   
           Observations are often coded in multiple code systems. 
           - Loinc provides a very specific code (though not usefully more specific in
         this particular case)
           - snomed provides a clinically relevant code that is usually less granular
         than LOINC
           - the source system provides it's own code, which may be less or more granular
         than LOINC
           -->
        <name>
          <!--   LOINC - always recommended to have a LOINC code   -->
          <coding>
            <system value="http://loinc.org"/>
            <code value="8480-6"/>
            <display value="Systolic blood pressure"/>
          </coding>
          <!--   SNOMED CT Codes - becoming more common   -->
          <coding>
            <system value="http://snomed.info/sct"/>
            <code value="271649006"/>
            <display value="Systolic blood pressure"/>
          </coding>
          <!--   Also, a local code specific to the source system   -->
          <coding>
            <system value="http://acme.org/devices/clinical-codes"/>
            <code value="bp-s"/>
            <display value="Systolic Blood pressure"/>
          </coding>
          <!--   that shows the concept. The next two names only have a LOINC code   --> 
        </name>
        <!--   no formal units in this example   -->
        <valueQuantity>
          <value value="107"/>
          <units value="mm[Hg]"/>
        </valueQuantity>
        <!--   the mandatory quality flags:   -->
        <status value="final"/>
        <reliability value="ok"/>
      </Observation>
    </content>
    <summary type="xhtml">
      <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Systolic Blood pressure 107 mmHg (low)</div>
    </summary>
  </entry>
  
  <!--   diastolic blood pressure: name, value, and flags   -->
  <entry>
    <title>Blood Pressure Observation</title>
    <id>http://acme.org/ehr/observations/34252345234-d</id>
    <updated>2014-01-30T22:35:23+11:00</updated>
    <author>
      <name>FHIR Project Team</name>
    </author>
    <content type="text/xml">
      <Observation xmlns="http://hl7.org/fhir">
        <text>
          <status value="generated"/>
          <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Diastolic Blood pressure 60 mmHg (low)</div>
        </text>
        <name>
          <coding>
            <system value="http://loinc.org"/>
            <code value="8462-4"/>
            <display value="Diastolic blood pressure"/>
          </coding>
        </name>
        <!--   no formal units in this example   -->
        <valueQuantity>
          <value value="60"/>
          <units value="mm[Hg]"/>
        </valueQuantity>
        <!--   the mandatory quality flags:   -->
        <status value="final"/>
        <reliability value="ok"/>
      </Observation>
    </content>
    <summary type="xhtml">
      <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Diastolic Blood pressure 60 mmHg (low)</div>
    </summary>
  </entry>
</feed>