Query: What was the result of my last MCHC test?, FHIR Resource: {'resourceType': 'Procedure', 'status': 'completed', 'category': None, 'code': {'coding': [{'system': 'http://snomed.info/sct', 'code': '73761001', 'display': 'Colonoscopy'}], 'text': 'Colonoscopy'}, 'subject': {'reference': 'urn:uuid:514d3cd5-9d59-c1c1-9457-aad183a74c4f'}, 'performedDateTime': None}