RespiratorySystemData

Modules
	AirwayPressure
	Instantaneous pressure applied during positive-pressure mechanical ventilation.
	AlveolarArterialGradient
	Measure of the difference between the alveolar concentration of oxygen and the arterial concentration of oxygen to assess the integrity of the alveolar capillary unit.
	AlveolarDeadSpace
	The volume of unperfused alveoli.
	AnatomicDeadSpace
	The total volume of the conducting airways from the nose or mouth down to the level of the terminal bronchioles that does not participate in gas exchange.
	ClinicalPhysiologicDeadSpaceTidalVolumeRatio
	The estimated ratio of dead-space ventilation (VD) to tidal ventilation (VT) based on the Bohr-Enghoff equation.
	ChestWallCompliance
	The static relationship between the transmural pressure across the chest wall compared with the chest cavity's volume.
	ElasticWorkOfBreathing
	The work (generally during the inhalation phase) that is stored as potential energy which is recovered during exhalation.
	EndTidalCarbonDioxideFraction
	The fraction of gas in the mouth/nose that is carbon dioxide at the end of each respiratory cycle.
	EndTidalCarbonDioxidePressure
	The pressure of gas in the mouth/nose that is carbon dioxide at the end of each respiratory cycle.
	EndTidalOxygenFraction
	The fraction of gas in the mouth/nose that is oxygen at the end of each respiratory cycle.
	EndTidalOxygenPressure
	The pressure of gas in the mouth/nose that is oxygen at the end of each respiratory cycle.
	ExpiratoryFlow
	Instantaneous airflow out of the lungs (negative value when inhaling).
	ExpiratoryRespiratoryResistance
	The total resistance to airflow through the lungs during exhalation.
	ExpiratoryTidalVolume
	The volume of air moved into or out of the lungs during normal expiration.
	ExtrinsicPositiveEndExpiratoryPressure
	The positive pressure intentionally applied to the airways at the end of expiration (i.e., the PEEP setting).
	FractionOfInspiredOxygen
	Fraction of Oxygen being taking into the body.
	HorowitzIndex
	(AKA P/F Ratio) The ratio of arterial partial pressure O2 and the inspired O2. O2 level in blood vs. Concentration of O2 in a breath.
	ImposedPowerOfBreathing
	Externally imposed work of breathing (e.g., from a ventilator).
	ImposedWorkOfBreathing
	Externally imposed power of breathing (e.g., from a ventilator).
	InspiratoryExpiratoryRatio
	The ratio of the length of time of inspiration to the length of time of expiration.
	InspiratoryFlow
	The instantaneous airflow into the lungs (negative value when exhaling).
	InspiratoryRespiratoryResistance
	The total resistance to airflow through the lungs during inhalation.
	InspiratoryTidalVolume
	The volume of air moved into or out of the lungs during normal inspiration.
	IntrapleuralPressure
	The pressure difference across the whole lung.
	IntrapulmonaryPressure
	The total respiratory recoil pressure relative to body surface.
	IntrinsicPositiveEndExpiratoryPressure
	The alveolar pressure at the end of expiration - also known as auto-PEEP, air trapping, or dynamic hyperinflation.
	LungCompliance
	The static measure of the lung's ability to stretch and expand.
	MaximalInspiratoryPressure
	The strength of inspiratory muscles.
	MeanAirwayPressure
	Mean pressure applied during positive-pressure mechanical ventilation.
	OxygenationIndex
	Used in intensive care medicine to measure the usage of oxygen within the body and predict outcomes. A lower oxygenation index is better.
	OxygenSaturationIndex
	Usage of oxygen within the body and predict outcomes.
	PatientPowerOfBreathing
	Internally imposed work of breathing from the respiratory muscles.
	PatientWorkOfBreathing
	Internally imposed power of breathing from the respiratory muscles.
	PeakInspiratoryPressure
	The highest pressure applied to the lungs (alveolar pressure) above atmospheric pressure during inhalation.
	PhysiologicDeadSpace
	The sum of the anatomic and alveolar dead space.
	PhysiologicDeadSpaceTidalVolumeRatio
	(AKA VD/VT Ratio) The ratio of dead-space ventilation (VD) to tidal ventilation (VT), directly computed from the fluid circuit.
	PhysiologicShuntFraction
	Fraction of cardiac output that passes through the pulmonary circulation without being oxygenated, due to perfusion of poorly ventilated alveoli.
	RespiratoryCompliance
	The total static compliance of the respiratory system.
	RespiratoryElastance
	The inverse of respiratory static compliance.
	RelativeTotalLungVolume
	The total volume of air within the lungs at any given time above the functional residual capacity.
	ResistiveExpiratoryWorkOfBreathing
	The work to overcome the frictional resistance to gas flow due to viscosity during exhalation.
	ResistiveInspiratoryWorkOfBreathing
	The work to overcome the frictional resistance to gas flow due to viscosity during inhalation.
	RespirationRate
	The frequency of the respiratory cycle.
	RespiratoryMuscleFatigue
	A measure of respiratory muscle weakness caused by excessive effort relative to the strength and endurance of the muscles.
	RespiratoryMusclePressure
	Pressure of the muscles that contribute to inhalation and exhalation, by aiding in the expansion and contraction of the thoracic cavity.
	SaturationAndFractionOfInspiredOxygenRatio
	A noninvasive surrogate for PiO2/FiO2 ratio (horowitz index).
	SpecificVentilation
	The ratio of the volume of gas entering a region of the lung following an inspiration and the end-expiratory volume of that same lung region.
	TidalVolume
	The volume of air moved into or out of the lungs during normal respiration.
	TotalAlveolarVentilation
	The air flow to the alveoli.
	TotalDeadSpaceVentilation
	The air flow to the dead space.
	TotalLungVolume
	The total volume of air within the lungs at any given time.
	TotalPositiveEndExpiratoryPressure
	The overall pressure in the alveoli at the end of expiration above atmospheric pressure.
	TotalPowerOfBreathing
	The sum of the imposed and patient power of breathing.
	TotalPulmonaryVentilation
	The amount of air that enters the lungs as a function of time - can be used for minute ventilation.
	TotalWorkOfBreathing
	The sum of the imposed and patient work of breathing.
	TransairwayPressure
	The pressure difference between the airway opening and alveoli.
	TransalveolarPressure
	The pressure difference between the alveoli and pleural space.
	TransChestWallPressure
	The pressure difference between the pleural space and body surface.
	TransMusclePressure
	The respiratory muscle driver pressure relative to body surface.
	TranspulmonaryPressure
	The pressure difference between the alveoli and the intrapleural space.
	TransrespiratoryPressure
	The pressure difference between the airway opening and body surface.
	TransthoracicPressure
	The pressure difference between the alveoli and body surface.
	VentilationPerfusionRatio
	(AKA V/Q Ratio) The ratio of the air that reaches the alveoli (ventilation) to the blood that reaches the alveoli via the capillaries (perfusion).
	Mechanics
	(AKA V/Q Ratio) The ratio of the air that reaches the alveoli (ventilation) to the blood that reaches the alveoli via the capillaries (perfusion).

Detailed Description

and transfer of gases between the lungs, the blood and the outside environment.