{
  "resourceType" : "Observation",
  "id" : "obsMagnesium",
  "meta" : {
    "profile" : ["https://www.ehealth.fgov.be/standards/fhir/lab/StructureDefinition/be-observation-laboratory"]
  },
  "text" : {
    "status" : "empty",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">empty</div>"
  },
  "status" : "final",
  "code" : {
    "coding" : [{
      "system" : "http://loinc.org",
      "code" : "2598-1",
      "display" : "Magnesium [Moles/volume] in Urine"
    }]
  },
  "effectiveDateTime" : "2015-11-04T09:16:00-05:00",
  "issued" : "2015-11-04T09:16:00-05:00",
  "performer" : [{
    "reference" : "Practitioner/practitioner10"
  }],
  "valueQuantity" : {
    "value" : 1,
    "unit" : "mmol/l",
    "system" : "http://unitsofmeasure.org",
    "code" : "mmol/l"
  },
  "specimen" : {
    "reference" : "Specimen/urine1"
  },
  "referenceRange" : [{
    "low" : {
      "value" : 1.23,
      "unit" : "mmol/l",
      "system" : "http://unitsofmeasure.org",
      "code" : "mmol/l"
    },
    "high" : {
      "value" : 2.06,
      "unit" : "mmol/l",
      "system" : "http://unitsofmeasure.org",
      "code" : "mmol/l"
    },
    "type" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/referencerange-meaning",
        "code" : "normal"
      }]
    }
  }]
}