// Instance: observation-lab-urine
// InstanceOf: Observation
// Description: "John Doe - Observation - Urinalysis"
// Usage: #example
// * meta.versionId = "1"
// * meta.lastUpdated = "2018-10-04T19:42:52.061-04:00"
// * meta.profile = "http://hl7.org/fhir/us/core/StructureDefinition/us-core-observationresults"
// * status = #final
// * category = http://hl7.org/fhir/observation-category#laboratory "Laboratory"
// * category.text = "Laboratory"
// * code = http://loinc.org#5811-5 "Specific gravity of Urine by Test strip"
// * code.text = "SPEC GRAV"
// * subject = Reference(Patient/john-doe) "John Doe"
// * effectiveDateTime = "2005-07-05"
// * valueQuantity = 1.017 '{urine specific gravity}'
// * referenceRange.low = 1.003 '{urine specific gravity}'
// * referenceRange.high = 1.035 '{urine specific gravity}'