Query: What were the levels of my calcium, glucose, and protein during my last lab tests?, FHIR Resource: {'resourceType': 'Observation', 'status': 'final', 'category': [{'coding': [{'system': 'http://terminology.hl7.org/CodeSystem/observation-category', 'code': 'laboratory', 'display': 'Laboratory'}]}], 'code': {'coding': [{'system': 'http://loinc.org', 'code': '17861-6', 'display': 'Calcium [Mass/volume] in Serum or Plasma'}], 'text': 'Calcium [Mass/volume] in Serum or Plasma'}, 'subject': {'reference': 'urn:uuid:0cf5bca8-884d-9dd9-c2d0-5b232dfbb573'}, 'effectiveDateTime': '2023-11-29T16:42:05+05:30', 'valueQuantity': {'value': 9.47, 'unit': 'mg/dL', 'system': 'http://unitsofmeasure.org', 'code': 'mg/dL'}, 'interpretation': None}