Query: What were my latest cholesterol levels?, 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': '6768-6', 'display': 'Alkaline phosphatase [Enzymatic activity/volume] in Serum or Plasma'}], 'text': 'Alkaline phosphatase [Enzymatic activity/volume] in Serum or Plasma'}, 'subject': {'reference': 'urn:uuid:54d00ea5-8424-ad80-c280-a1d881891ca3'}, 'effectiveDateTime': '2021-04-21T02:15:33+05:30', 'valueQuantity': {'value': 90.621, 'unit': 'U/L', 'system': 'http://unitsofmeasure.org', 'code': 'U/L'}, 'interpretation': None}