Query: What was my body weight during my last check up?, 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': '6301-6', 'display': 'INR in Platelet poor plasma by Coagulation assay'}], 'text': 'INR in Platelet poor plasma by Coagulation assay'}, 'subject': {'reference': 'urn:uuid:60abc6f7-093a-6a59-8512-7cadf7e16bee'}, 'effectiveDateTime': '2017-01-03T04:52:06+05:30', 'valueQuantity': {'value': 1.0456, 'unit': '{INR}', 'system': 'http://unitsofmeasure.org', 'code': '{INR}'}, 'interpretation': None}