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Source1

{
  "resourceType": "Observation",
  "id": "maya-johnson-hgb-fractionation",
  "meta": {
    "profile": [
      "http://hl7.org/fhir/us/uscdi-scd/StructureDefinition/uscdi-scd-laboratory-result"
    ]
  },
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "laboratory",
          "display": "Laboratory"
        }
      ]
    },
    {
      "coding": [
        {
          "system": "http://hl7.org/fhir/us/uscdi-scd/CodeSystem/scd-observation-category-cs",
          "code": "hemoglobin-fractionation",
          "display": "Hemoglobin Fractionation"
        }
      ]
    },
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "laboratory"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "32682-8",
        "display": "Hemoglobin pattern [Interpretation] in Blood"
      }
    ],
    "text": "Hemoglobin Fractionation by HPLC"
  },
  "subject": {
    "reference": "Patient/maya-johnson-patient"
  },
  "effectiveDateTime": "2024-11-14T04:00:00-06:00",
  "issued": "2024-11-14T05:30:00-06:00",
  "valueString": "HbSS pattern: HbS 58%, HbF 18%, HbA2 3.2%",
  "interpretation": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
          "code": "H",
          "display": "High"
        }
      ],
      "text": "HbS% above target (<30%); exchange transfusion indicated"
    }
  ],
  "component": [
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "4625-4",
            "display": "Hemoglobin S/Hemoglobin.total in Blood"
          }
        ]
      },
      "valueQuantity": {
        "value": 58,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "referenceRange": [
        {
          "text": "Target <30% (pre-exchange)"
        }
      ]
    },
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "4576-9",
            "display": "Hemoglobin F/Hemoglobin.total in Blood"
          }
        ]
      },
      "valueQuantity": {
        "value": 18,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "referenceRange": [
        {
          "text": "Target >15–20% on hydroxyurea"
        }
      ]
    },
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "4551-8",
            "display": "Hemoglobin A2/Hemoglobin.total in Blood"
          }
        ]
      },
      "valueQuantity": {
        "value": 3.2,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      }
    }
  ]
}