{
  "resourceType": "Observation",
  "meta": {
    "lastUpdated": "2017-08-24T15:51:23+00:00"
  },
  "text": {
    "status": "additional",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p>%Some xhtml content%</p></div>"
  },
  "extension": [
    {
      "url": "[base-structure]/ca-on-lab-ext-obs-sub-id",
      "valueString": "1"
    },
    {
      "url": "[base-structure]/ca-on-lab-ext-obs-sort-key",
      "valueString": "3"
    },
    {
      "extension": [
        {
          "url": "sorce",
          "valueCoding": {
            "system": "http://hl7.org/fhir/v2/0105",
            "code": "P",
            "display": "Order"
          }
        },
        {
          "url": "annotation",
          "valueAnnotation": {
            "authorString": "[id-system-global-base]/ca-on-lab-license:4008",
            "text": "Example of procedure request note"
          }
        }
      ],
      "url": "[base-structure]/ca-on-lab-ext-note"
    }
  ],
  "identifier": [
    {
      "system": "[id-system-local-base]/lab/filler-id-lab-license-4004",
      "value": "23423432",
      "assigner": {
        "reference": "#Org1"
      }
    }
  ],
  "basedOn": [
    {
      "reference": "ProcedureRequest#1"
    }
  ],
  "status": "registered",
  "code": {
    "coding": [
      {
        "system": "http://loinc.org/",
        "code": "39792-7",
        "display": "Sodium:SCnc:Pt:BldC:Qn"
      }
    ]
  },
  "subject": {
    "reference": "Pat#1"
  },
  "effectiveDateTime": "2017-08-24T15:51:24+00:00",
  "issued": "2017-08-24T15:51:24+00:00",
  "performer": [
    {
      "reference": "Org#1"
    }
  ],
  "valueQuantity": {
    "value": 205
  },
  "interpretation": {
    "coding": [
      {
        "system": "http://hl7.org/fhir/v2/0078",
        "code": "AA",
        "display": "Critical abnormal"
      }
    ]
  },
  "method": {
    "text": "PCR"
  },
  "specimen": {
    "reference": "Specimen#1"
  },
  "referenceRange": [
    {
      "low": {
        "value": 135,
        "unit": "mmol"
      },
      "high": {
        "value": 145,
        "unit": "mmol"
      },
      "appliesTo": [
        {
          "coding": [
            {
              "system": "http://hl7.org/fhir/v2/0080",
              "code": "R",
              "display": "Race"
            }
          ]
        }
      ]
    }
  ]
}