internal static BloodPressure ToBloodPressure(this Observation observation)
{
var bloodPressure = observation.ToThingBase <BloodPressure>();
bloodPressure.When = ObservationToHealthVault.GetHealthVaultTimeFromEffectiveDate(observation.Effective);
bloodPressure.IrregularHeartbeatDetected = observation.GetBoolExtension(HealthVaultVocabularies.IrregularHeartBeatExtensionName);
if (observation.Component != null)
{
foreach (var component in observation.Component)
{
if (component.Code != null && component.Code.Coding != null)
{
foreach (var code in component.Code.Coding)
{
if (code.Code != null)
{
if (HealthVaultVocabularies.SystemContainsHealthVaultUrl(code.System))
{
if (code.Code == HealthVaultVitalStatisticsCodes.BloodPressureDiastolic.Code)
{
SetDiastolic(bloodPressure, component);
}
else if (code.Code == HealthVaultVitalStatisticsCodes.BloodPressureSystolic.Code)
{
SetSystolic(bloodPressure, component);
}
else if (code.Code == HealthVaultVitalStatisticsCodes.HeartRate.Code)
{
SetPulse(bloodPressure, component);
}
}
else
{
switch (code.Code.ToLowerInvariant())
{
// HeartRate component
case "8867-4":
SetPulse(bloodPressure, component);
break;
// Systolic LOINC, SNOMED, ACME codes
case "8480-6":
case "271649006":
case "bp-s":
SetSystolic(bloodPressure, component);
break;
// Diastolic LOINC code
case "8462-4":
SetDiastolic(bloodPressure, component);
break;
default:
continue;
}
break;
}
}
}
}
}
}
return(bloodPressure);
}
