Query: What was the level of my HDL cholesterol in the last test?, 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': '33914-3', 'display': 'Glomerular filtration rate/1.73 sq M.predicted [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD)'}], 'text': 'Glomerular filtration rate/1.73 sq M.predicted [Volume Rate/Area] in Serum or Plasma by Creatinine-based formula (MDRD)'}, 'subject': {'reference': 'urn:uuid:3d16fb3a-69a8-a95c-ff67-e4af5af878f8'}, 'effectiveDateTime': '2021-04-11T10:04:16+05:30', 'valueQuantity': {'value': 73.44, 'unit': 'mL/min/{1.73_m2}', 'system': 'http://unitsofmeasure.org', 'code': 'mL/min/{1.73_m2}'}, 'interpretation': None}