Global Variable

HKQuantityTypeIdentifierPeripheralPerfusionIndex

A quantity sample type that measures the user’s peripheral perfusion index.

Declaration

const HKQuantityTypeIdentifier HKQuantityTypeIdentifierPeripheralPerfusionIndex;

Discussion

The peripheral perfusion index measures the pulse strength at the monitoring site. These samples use percent units (described in HKUnit) and measure discrete values (described in HKStatisticsQuery).

See Also

Lab and Test Results

HKQuantityTypeIdentifierBloodAlcoholContent

A quantity sample type that measures the user’s blood alcohol content.

HKQuantityTypeIdentifierBloodGlucose

A quantity sample type that measures the user’s blood glucose level.

HKQuantityTypeIdentifierElectrodermalActivity

A quantity sample type that measures electrodermal activity.

HKQuantityTypeIdentifierForcedExpiratoryVolume1

A quantity sample type that measures the amount of air that can be forcibly exhaled from the lungs during the first second of a forced exhalation.

HKQuantityTypeIdentifierForcedVitalCapacity

A quantity sample type that measures the amount of air that can be forcibly exhaled from the lungs after taking the deepest breath possible.

HKQuantityTypeIdentifierInhalerUsage

A quantity sample type that measures the number of puffs the user takes from their inhaler.

HKQuantityTypeIdentifierInsulinDelivery

A quantity sample that measures the amount of insulin delivered.

HKQuantityTypeIdentifierNumberOfTimesFallen

A quantity sample type that measures the number of times the user has fallen.

HKQuantityTypeIdentifierPeakExpiratoryFlowRate

A quantity sample type that measures the user’s maximum flow rate generated during a forceful exhalation.