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The alveolar air equation is: PAO2 = FiO2(Pb-47)-(PaCO2/R) where: PAO2 is the partial pressure of oxygen in alveoar gas; FiO2 is the fraction of inspired oxygen (on room air this would be 21%); Pb is the barometric pressure (at sea level this is 760 torr); 47 is the partial pressure of water vapor; PaCO2 is the partial pressure of carbon dioxide in blood; R is the V/Q mismatch, which is 0.8 unless stated otherwise So, if a person is breathing room air at sea level, their PaCO2 is in normal range (let's say 40mmHG, since normal is between 35-45mmHg), and their respiratory rate is 12: PAO2= .21(760-47)-(40/0.8); .21(713)-(50)= 149.73-50=99.73 So the PAO2= 99.73mmHg
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What is an equation that contains a variable?
It is an equation. It could be an algebraic equation, or a trigonometric equation, a differential equation or whatever, but it is still an equation.
What is an equation that relates quantities represented by variables?
Simply that, an "equation".Simply that, an "equation".Simply that, an "equation".Simply that, an "equation".
Do you answer an equation?
you don't answer an equation, you solve an equation
Can air preesure go down to negative numbers?
Yes, because PV=nRt From this equation it becomes apparent that air pressure, V, can be negative. Since negative temperatures can exist, such as -30C (remember you have to use Celsius and not Fahrenheit). Thus we have negative numbers for air pressure.
What is the equation of a logarithmic equation?
A logarithmic equation would be any equation that includes the log function.
What keeps the surface between the air and the alveolar cells moist in the lung?
alveolar fluid
What is an alveolar dead space?
An alveolar dead space is the volume of air in the alveoli of the lungs which does not partake in gas exchange.
How does one calculate alveolar carbon dioxide partial pressure?
Alveolar carbon dioxide partial pressure can be calculated using the alveolar gas equation: PaCO2 = (Pb-PH2O) * FiCO2 - (PaCO2 / R), where PaCO2 is the alveolar partial pressure of carbon dioxide, Pb is barometric pressure, PH2O is water vapor pressure, FiCO2 is inspired fraction of CO2, and R is the respiratory quotient. This equation helps estimate the partial pressure of CO2 in the alveoli.
Do the alveolar ducts absorb carbon dioxide?
No, alveolar ducts do not absorb carbon dioxide. Instead, the main function of alveolar ducts is to deliver oxygen from the air sacs to the bloodstream and remove carbon dioxide from the bloodstream into the air sacs for exhalation.
What is the function alveolar?
filter carbon dioxide from the air you breathe, to be exhaled.
What is emphyzema?
Hyper inflation of air sacs with destruction of alveolar walls.
What is alveolar ventilation refers to?
Alveolar ventilation refers to the amount of air that reaches the alveoli in the lungs per minute and is available for gas exchange. It is calculated by subtracting the anatomical dead space from the total minute ventilation. Alveolar ventilation is important in maintaining adequate oxygen levels and eliminating carbon dioxide from the body.
Why CO2 is more in alveolar air than expired air?
CO2 is more concentrated in alveolar air compared to expired air because gas exchange occurs in the lungs where oxygen is taken up by the blood and CO2 is released into the alveoli. Additionally, more CO2 is produced in the body through cellular respiration, contributing to its higher concentration in alveolar air.
What is the formula for AA gradient?
PAO2 - PaO2 ****************************************** PAO2 is the Alveolar Air Equation: PAO2 = FiO2 (Pb- Ph20) - PACO2/R Notes: Pb = 760 mmHg Ph20 = 47 mmHg R = 0.8
Function of alveolar ducts?
Trap air in lungs (act as air pockets 4 gaseous exchange).
What is the structure of alveolar ducts?
Alveolar ducts are small tube-like structures in the lungs that connect respiratory bronchioles to alveolar sacs. They are lined with alveoli (air sacs) where gas exchange occurs. Alveolar ducts are an important part of the respiratory system in facilitating the exchange of oxygen and carbon dioxide in the lungs.
Where does Vesicular breathing sounds probably result from?
Air filling the alveolar sacs.
