{
  "status" : "final",
  "category" : {
    "text" : "Laboratory",
    "coding" : [
      {
        "system" : "http://hl7.org/fhir/observation-category",
        "display" : "Laboratory",
        "code" : "laboratory"
      }
    ]
  },
  "comments" : "Units: ml/min/1.73 m2. Estimated Glomerular Filtration Rate \r\nvalues are calculated by MDRD equation and are valid only if \r\ncreatinine level is stable. GFRs are most accurate for results \r\n60 ml/min/1.73 m2 or less.   \r\nReference: www.nkdep.nih.gov/professionals/index.htm",
  "id" : "T1TF26yrXPO2WKNYJQ5WqKDR3Z3L6lnJ8dciHjoUyfDAB",
  "code" : {
    "text" : "GFR EST-AFRICAN AMERICAN"
  },
  "valueString" : ">60",
  "subject" : {
    "display" : "Lopez, James",
    "reference" : "https://apiservices.sutterhealth.org/ifs/api/FHIR/DSTU2/Patient/Tbjbfj8w94HFwJ-ekeTNN.e1WrM6guoKJdhNrHG7dSfUB"
  },
  "referenceRange" : [
    {
      "text" : ">60"
    }
  ],
  "effectiveDateTime" : "2012-10-12T14:57:00Z",
  "resourceType" : "Observation"
}