Query: What was the result of my last Patient Health Questionnaire 2 item (PHQ-2) total score?, FHIR Resource: {'resourceType': 'Observation', 'status': 'final', 'category': [{'coding': [{'system': 'http://terminology.hl7.org/CodeSystem/observation-category', 'code': 'vital-signs', 'display': 'Vital signs'}]}], 'code': {'coding': [{'system': 'http://loinc.org', 'code': '29463-7', 'display': 'Body Weight'}], 'text': 'Body Weight'}, 'subject': {'reference': 'urn:uuid:0dc85555-a804-6eaa-60f7-677a9eda1d45'}, 'effectiveDateTime': '2023-11-08T21:10:22+05:30', 'valueQuantity': {'value': 80.5, 'unit': 'kg', 'system': 'http://unitsofmeasure.org', 'code': 'kg'}, 'interpretation': None}