Query: What were the results of my last Basic Metabolic Panel?, 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': '20565-8', 'display': 'Carbon dioxide, total [Moles/volume] in Blood'}], 'text': 'Carbon dioxide, total [Moles/volume] in Blood'}, 'subject': {'reference': 'urn:uuid:16b26ede-3b83-0c0d-50d7-bed56a0e499f'}, 'effectiveDateTime': '2016-07-16T19:20:43+05:30', 'valueQuantity': {'value': 26.15, 'unit': 'mmol/L', 'system': 'http://unitsofmeasure.org', 'code': 'mmol/L'}, 'interpretation': None}