Airway Resistance Calculator

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✖Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth.ⓘ Atmospheric Pressure [P_atm]			+10% -10%
✖Alveolar Pressure is the pressure of air inside the lung alveoli.ⓘ Alveolar Pressure [P_A]			+10% -10%
✖Volumetric Airflow is the volumetric flow rate (also known as volume flow rate, rate of fluid flow, or volume velocity) is the volume of fluid which passes per unit time.ⓘ Volumetric Airflow [v̇]			+10% -10%

✖Airway Resistance is the change in transpulmonary pressure needed to produce a unit flow of gas through the airways of the lung.ⓘ Airway Resistance [R_AW]

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Airway Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Airway Resistance = (Atmospheric Pressure-Alveolar Pressure)/Volumetric Airflow
R_AW = (P_atm-P_A)/v̇
This formula uses 4 Variables

Variables Used

Airway Resistance - Airway Resistance is the change in transpulmonary pressure needed to produce a unit flow of gas through the airways of the lung.
Atmospheric Pressure - (Measured in Pascal) - Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth.
Alveolar Pressure - (Measured in Pascal) - Alveolar Pressure is the pressure of air inside the lung alveoli.
Volumetric Airflow - (Measured in Cubic Meter per Second) - Volumetric Airflow is the volumetric flow rate (also known as volume flow rate, rate of fluid flow, or volume velocity) is the volume of fluid which passes per unit time.

STEP 1: Convert Input(s) to Base Unit

Atmospheric Pressure: 101325 Pascal --> 101325 Pascal No Conversion Required
Alveolar Pressure: 10 Centimeter Water (4 °C) --> 980.665 Pascal (Check conversion here)
Volumetric Airflow: 10 Cubic Centimeter per Second --> 1E-05 Cubic Meter per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_AW = (P_atm-P_A)/v̇ --> (101325-980.665)/1E-05

Evaluating ... ...

R_AW = 10034433500

STEP 3: Convert Result to Output's Unit

10034433500 --> No Conversion Required

FINAL ANSWER

10034433500 ≈ 1E+10 <-- Airway Resistance

(Calculation completed in 00.004 seconds)

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Credits

Created by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

Soupayan banerjee has created this Calculator and 200+ more calculators!

Verified by Prerana Bakli

University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

Prerana Bakli has verified this Calculator and 1600+ more calculators!

< Lung Physiology Calculators

Vital Capacity of Lung

LaTeX Go Vital Capacity of Lung = Tidal Volume+Inspiratory Reserve Volume+Expiratory Reserve Volume

Airway Resistance

LaTeX Go Airway Resistance = (Atmospheric Pressure-Alveolar Pressure)/Volumetric Airflow

Inspiratory capacity of Lung

LaTeX Go Inspiratory Capacity = Tidal Volume+Inspiratory Reserve Volume

Airway Conductance

LaTeX Go Airway Conductance = 1/Airway Resistance

Airway Resistance Formula

LaTeX Go

Airway Resistance = (Atmospheric Pressure-Alveolar Pressure)/Volumetric Airflow
R_AW = (P_atm-P_A)/v̇

What is airway resistance?

The definition of airway resistance is the change in transpulmonary pressure needed to produce a unit flow of gas through the airways of the lung. More simply put, it is the pressure difference between the mouth and alveoli of the lung, divided by airflow.

How to Calculate Airway Resistance?

Airway Resistance calculator uses Airway Resistance = (Atmospheric Pressure-Alveolar Pressure)/Volumetric Airflow to calculate the Airway Resistance, The Airway Resistance formula is defined as the resistance of the respiratory tract to airflow during inhalation and exhalation. Airway resistance can be measured using plethysmography. Airway Resistance is denoted by R_AW symbol.

How to calculate Airway Resistance using this online calculator? To use this online calculator for Airway Resistance, enter Atmospheric Pressure (P_atm), Alveolar Pressure (P_A) & Volumetric Airflow (v̇) and hit the calculate button. Here is how the Airway Resistance calculation can be explained with given input values -> 1E+10 = (101325-980.665)/1E-05.

FAQ

What is Airway Resistance?

The Airway Resistance formula is defined as the resistance of the respiratory tract to airflow during inhalation and exhalation. Airway resistance can be measured using plethysmography and is represented as R_AW = (P_atm-P_A)/v̇ or Airway Resistance = (Atmospheric Pressure-Alveolar Pressure)/Volumetric Airflow. Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth, Alveolar Pressure is the pressure of air inside the lung alveoli & Volumetric Airflow is the volumetric flow rate (also known as volume flow rate, rate of fluid flow, or volume velocity) is the volume of fluid which passes per unit time.

How to calculate Airway Resistance?

The Airway Resistance formula is defined as the resistance of the respiratory tract to airflow during inhalation and exhalation. Airway resistance can be measured using plethysmography is calculated using Airway Resistance = (Atmospheric Pressure-Alveolar Pressure)/Volumetric Airflow. To calculate Airway Resistance, you need Atmospheric Pressure (P_atm), Alveolar Pressure (P_A) & Volumetric Airflow (v̇). With our tool, you need to enter the respective value for Atmospheric Pressure, Alveolar Pressure & Volumetric Airflow and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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