Request for Intravenous Dopamine - Weight based calculation with rateQuantity

{
  "resourceType" : "MedicationRequest",
  "id" : "medrx0336",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: MedicationRequest</b><a name=\"medrx0336\"> </a></p><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\">Resource MedicationRequest &quot;medrx0336&quot; </p></div><p><b>identifier</b>: id: 12345689 (use: OFFICIAL)</p><p><b>status</b>: completed</p><p><b>intent</b>: order</p><h3>Medications</h3><table class=\"grid\"><tr><td>-</td><td><b>Reference</b></td></tr><tr><td>*</td><td><span title=\"  Linked to a RESOURCE Medication  \"><a name=\"med0336\"> </a></span><blockquote><p/><p><a name=\"med0336\"> </a></p><p><b>doseForm</b>: Injection Solution (qualifier value) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#385219001)</span></p><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Dopamine <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v3-rxNorm.html\">RxNorm</a>#1114879)</span></td></tr></table><p><b>strength</b>: 400 mg<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mg = 'mg')</span>/500 mL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL = 'mL')</span></p></blockquote><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Dextrose 5% injection USP <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v3-ndc.html\">National drug codes</a>#0264-7510-10)</span></td></tr></table><p><b>strength</b>: 5 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span>/100 mL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL = 'mL')</span></p></blockquote></blockquote></td></tr></table><p><b>subject</b>: <a href=\"patient-example-a.html\">Patient/pat1: Donald Duck</a> &quot;Donald DUCK&quot;</p><p><b>supportingInformation</b>: <a href=\"observation-example.html\">Observation/example</a></p><p><b>authoredOn</b>: 2015-01-15</p><p><b>requester</b>: <a href=\"practitioner-example-f007-sh.html\">Practitioner/f007: Patrick Pump</a> &quot;Simone HEPS&quot;</p><blockquote><p><b>dosageInstruction</b></p><p><b>sequence</b>: 1</p><p><b>text</b>: Dopamine 4mcg/kg/min</p><p><b>timing</b>: Duration 33.33?ngen-7?, Once</p><p><b>route</b>: Intravenous route (qualifier value) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#47625008)</span></p><blockquote><p><b>doseAndRate</b></p></blockquote></blockquote></div>"
  },
  "contained" : [{
    "resourceType" : "Medication",
    "id" : "med0336",
    "doseForm" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "385219001",
        "display" : "Injection Solution (qualifier value)"
      }],
      "text" : "Injection Solution (qualifier value)"
    },
    "ingredient" : [{
      "item" : {
        "concept" : {
          "coding" : [{
            "system" : "http://www.nlm.nih.gov/research/umls/rxnorm",
            "code" : "1114879",
            "display" : "Dopamine"
          }]
        }
      },
      "strengthRatio" : {
        "numerator" : {
          "value" : 400,
          "system" : "http://unitsofmeasure.org",
          "code" : "mg"
        },
        "denominator" : {
          "value" : 500,
          "system" : "http://unitsofmeasure.org",
          "code" : "mL"
        }
      }
    },
    {
      "item" : {
        "concept" : {
          "coding" : [{
            "system" : "http://hl7.org/fhir/sid/ndc",
            "code" : "0264-7510-10",
            "display" : "Dextrose 5% injection USP"
          }]
        }
      },
      "strengthRatio" : {
        "numerator" : {
          "value" : 5,
          "system" : "http://unitsofmeasure.org",
          "code" : "g"
        },
        "denominator" : {
          "value" : 100,
          "system" : "http://unitsofmeasure.org",
          "code" : "mL"
        }
      }
    }]
  }],
  "identifier" : [{
    "use" : "official",
    "system" : "http://www.bmc.nl/portal/prescriptions",
    "value" : "12345689"
  }],
  "status" : "completed",
  "intent" : "order",
  "medication" : {
    "reference" : {
      "reference" : "#med0336",
      "display" : "Dopamine 400mg in 500mL D5W"
    }
  },
  "subject" : {
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  },
  "supportingInformation" : [{
    "reference" : "Observation/example"
  }],
  "authoredOn" : "2015-01-15",
  "requester" : {
    "reference" : "Practitioner/f007",
    "display" : "Patrick Pump"
  },
  "dosageInstruction" : [{
    "sequence" : 1,
    "text" : "Dopamine 4mcg/kg/min",
    "timing" : {
      "repeat" : {
        "duration" : 33.33,
        "durationUnit" : "h"
      }
    },
    "route" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "47625008",
        "display" : "Intravenous route (qualifier value)"
      }]
    },
    "doseAndRate" : [{
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/dose-rate-type",
          "code" : "ordered",
          "display" : "Ordered"
        }]
      },
      "rateQuantity" : {
        "value" : 4,
        "unit" : "ug/kg/min",
        "system" : "http://unitsofmeasure.org"
      }
    }]
  }]
}