{
  "resourceType": "Observation",
  "id": "2898a68a-5152-49dc-abcf-cf5338b62059",
  "meta": {
    "versionId": "1",
    "lastUpdated": "2016-12-16T14:33:01.404+00:00"
  },
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">2005-07-05: CO2 SerPl-sCnc = 24 mmol/L</div>"
  },
  "status": "final",
  "category": {
    "coding": [
      {
        "system": "http://hl7.org/fhir/observation-category",
        "code": "laboratory",
        "display": "Laboratory"
      }
    ],
    "text": "Laboratory"
  },
  "code": {
    "coding": [
      {
        "system": "http://loinc.org/",
        "code": "2028-9",
        "display": "CO2 SerPl-sCnc"
      }
    ],
    "text": "CO2 SerPl-sCnc"
  },
  "subject": {
    "reference": "Patient/1134281"
  },
  "effectiveDateTime": "2005-07-05",
  "valueQuantity": {
    "value": 24.0,
    "unit": "mmol/L",
    "system": "http://unitsofmeasure.org/"
  },
  "referenceRange": [
    {
      "low": {
        "value": 22.0,
        "unit": "mmol/L",
        "system": "http://unitsofmeasure.org/",
        "code": "mmol/L"
      },
      "high": {
        "value": 29.0,
        "unit": "mmol/L",
        "system": "http://unitsofmeasure.org/",
        "code": "mmol/L"
      },
      "meaning": {
        "coding": [
          {
            "system": "http://hl7.org/fhir/referencerange-meaning",
            "code": "normal",
            "display": "Normal Range"
          }
        ],
        "text": "Normal Range"
      }
    }
  ]
}