Query: What were my cholesterol and creatinine levels during my last medical checkup?, FHIR Resource: {'resourceType': 'Procedure', 'status': 'completed', 'category': None, 'code': {'coding': [{'system': 'http://snomed.info/sct', 'code': '31676001', 'display': 'Human immunodeficiency virus antigen test'}], 'text': 'Human immunodeficiency virus antigen test'}, 'subject': {'reference': 'urn:uuid:54d00ea5-8424-ad80-c280-a1d881891ca3'}, 'performedDateTime': None}