{
  "resourceType": "Observation",
  "id": "observation-39",
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "vital-signs",
          "display": "Vital Signs"
        }
      ],
      "text": "Vital Signs"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "2708-6",
        "display": "Oxygen saturation in Arterial blood"
      }
    ],
    "text": "Oxygen saturation"
  },
  "subject": {
    "reference": "Patient/patient-1",
    "display": "Example, Anne"
  },
  "valueQuantity": {
    "value": 91,
    "unit": "%",
    "system": "http://unitsofmeasure.org",
    "code": "%"
  },
  "referenceRange": [
    {
      "low": {
        "value": 92,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      }
    }
  ],
  "encounter": {
    "reference": "Encounter/encounter-1",
    "display": "Inpatient encounter - Respiratory"
  },
  "effectiveDateTime": "2023-11-04T18:00:00Z",
  "note": [
    {
      "text": "91% on air"
    }
  ]
}