<?xml version="1.0" encoding="UTF-8"?>

<MedicationRequest xmlns="http://hl7.org/fhir">
  <id value="medrx0351"/>
  <!-- Medical gas order: HeliOx, linked to the supplementary oxygen order medrx0352 by groupIdentifier -->
  <groupIdentifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:uuid:8b7a3c6e-4d2f-4a1b-9e0c-5f6d7e8a9b10"/>
  </groupIdentifier>
  <status value="active"/>
  <intent value="order"/>
  <medication>
    <concept>
      <coding>
        <system value="http://snomed.info/sct"/>
        <code value="895694008"/>
        <display value="Helium 0.79 mL/mL and oxygen 0.21 mL/mL gas for inhalation"/>
      </coding>
      <text value="HeliOx 79/21 (helium 79% / oxygen 21%)"/>
    </concept>
  </medication>
  <subject>
    <reference value="Patient/pat1"/>
    <display value="Donald Duck"/>
  </subject>
  <authoredOn value="2026-02-10"/>
  <requester>
    <reference value="Practitioner/f007"/>
  </requester>
  <device>
    <concept>
      <coding>
        <system value="http://snomed.info/sct"/>
        <code value="427591007"/>
        <display value="Nonrebreather oxygen mask"/>
      </coding>
    </concept>
  </device>
  <reason>
    <concept>
      <coding>
        <system value="http://snomed.info/sct"/>
        <code value="71186008"/>
        <display value="Croup (disorder)"/>
      </coding>
    </concept>
  </reason>
  <dosageInstruction>
    <renderedInstruction value="HeliOx 79/21 at 6 L/min (6 to 8 L/min) via non-rebreather mask"/>
    <step>
      <component>
        <text value="HeliOx 79/21 at 6 L/min (6 to 8 L/min) via non-rebreather mask"/>
        <route>
          <coding>
            <system value="http://snomed.info/sct"/>
            <code value="447694001"/>
            <display value="Respiratory tract route"/>
          </coding>
        </route>
        <doseAndRate>
          <rateRange>
            <low>
              <value value="6"/>
              <unit value="L/min"/>
              <system value="http://unitsofmeasure.org"/>
              <code value="L/min"/>
            </low>
            <high>
              <value value="8"/>
              <unit value="L/min"/>
              <system value="http://unitsofmeasure.org"/>
              <code value="L/min"/>
            </high>
          </rateRange>
        </doseAndRate>
      </component>
    </step>
  </dosageInstruction>
</MedicationRequest>