{
  "O2054": {
    "_ref": "O2054_OB_ULTRASOUND_1086560686639248", 
    "demo": {
      "BirthYear": "1991", 
      "DeathYear": " ", 
      "Ethnicity": "Non-Hispanic", 
      "FirstRace": "White", 
      "MultiRacial": "No", 
      "Sex": "Female"
    }, 
    "exam": {
      "AgeAtExam": "28", 
      "IsAbnormal": "No", 
      "PrimaryDiagnosis": "Encounter for other specified antenatal screening", 
      "ProcedureName": "OB U/S COMPLETE > 14 WEEKS, SINGLE GESTATION", 
      "SmokingStatus": "Former Smoker", 
      "Status": "Alive", 
      "Trimester": "2"
    }, 
    "labs": {
      "BloodType": "O Negative"
    }
  }
}