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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: Hematocrit Example - JSON Representation

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{
  "resourceType" : "Observation",
  "id" : "cbc-hematocrit",
  "meta" : {
    "extension" : [
      {
        "url" : "http://hl7.org/fhir/StructureDefinition/instance-name",
        "valueString" : "Hematocrit Example"
      },
      {
        "url" : "http://hl7.org/fhir/StructureDefinition/instance-description",
        "valueMarkdown" : "This is a hematocrit example for the *US Core Observation Lab Profile* and CBC example for the *US Core DiagnosticReport Lab Profile*."
      }
    ],
    "lastUpdated" : "2005-07-05T15:29:58.597000+00:00",
    "profile" : [
      🔗 "http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-lab"
    ]
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation cbc-hematocrit</b></p><a name=\"cbc-hematocrit\"> </a><a name=\"hccbc-hematocrit\"> </a><a name=\"cbc-hematocrit-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 Profile</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 4544-3}\">Hematocrit</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>: 43.0 %<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  code% = '%')</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>46.0 %<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  code% = '%')</span></td><td>38.0 %<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  code% = '%')</span></td><td><span title=\"Codes:{http://terminology.hl7.org/CodeSystem/referencerange-meaning normal}\">Normal Range</span></td></tr></table></div>"
  },
  "status" : "final",
  "category" : [
    {
      "coding" : [
        {
          "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
          "code" : "laboratory",
          "display" : "Laboratory"
        }
      ],
      "text" : "Laboratory"
    }
  ],
  "code" : {
    "coding" : [
      {
        "system" : "http://loinc.org",
        "code" : "4544-3",
        "display" : "Hematocrit [Volume Fraction] of Blood by Automated count"
      }
    ],
    "text" : "Hematocrit"
  },
  "subject" : {
    🔗 "reference" : "Patient/example",
    "display" : "Amy Shaw"
  },
  "effectiveDateTime" : "2005-07-05",
  "performer" : [
    {
      🔗 "reference" : "Practitioner/practitioner-1",
      "display" : "Dr Ronald Bone"
    }
  ],
  "valueQuantity" : {
    "value" : 43.0,
    "unit" : "%",
    "system" : "http://unitsofmeasure.org",
    "code" : "%"
  },
  "interpretation" : [
    {
      "coding" : [
        {
          "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
          "code" : "N",
          "display" : "Normal"
        }
      ],
      "text" : "Normal"
    }
  ],
  "referenceRange" : [
    {
      "low" : {
        "value" : 46.0,
        "unit" : "%",
        "system" : "http://unitsofmeasure.org",
        "code" : "%"
      },
      "high" : {
        "value" : 38.0,
        "unit" : "%",
        "system" : "http://unitsofmeasure.org",
        "code" : "%"
      },
      "type" : {
        "coding" : [
          {
            "system" : "http://terminology.hl7.org/CodeSystem/referencerange-meaning",
            "code" : "normal",
            "display" : "Normal Range"
          }
        ],
        "text" : "Normal Range"
      }
    }
  ]
}