Global Variable

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.

Declaration

const HKQuantityTypeIdentifier HKQuantityTypeIdentifierForcedExpiratoryVolume1;

Discussion

These samples use volume 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.

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.

HKQuantityTypeIdentifierPeripheralPerfusionIndex

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