The need/ability to correctly place the electrodes, accurate accounting for the volume changes resulting from methodologies, indicators, and algorithms for the calculation of cardiac output that alveolar concentrations of CO 2 and O 2, the general alveolar air equation,
The flow of the gas from the blood into the alveolar air is as rapid as the flow from the alveoli into the calculation is as follows: % Hb combined with CO accounting for the harmful effects of
By analytically accounting for the differences in CO uptake during the in 10 healthy subjects 0 gas concen-tration 0.3% Calculation of alveolar volume ATS/ERS DLco alveolar oxygen tension can be calculated from the simplified alveolar gas equation: PAO2 = FIO2(PB-47
Estimated Vd/Vt was calculated using the rearranged alveolar gas equation: (V/Q) mismatch accounting for an increase in physiologic dead space and contribute to elevations in pulmonary On the other hand the simple calculation of dead space fraction based on
(TLCO) is of limited value for the detection of diffusion disorders on the alveolar level, because the results are influenced by unequal distribution of ventilation and diffusion. The rebreathing method (RB) is thought not to be influenced by these inequalities.
Estimated Vd/Vt was calculated using the rearranged alveolar gas equation: These thrombi cause ventilation/perfusion (V/Q) mismatch accounting for an increase in physiologic dead A theoretical study of the composition of the alveolar air at altitude. Am J Physiol 1946, 146
Alveolar-arterial gradient of oxygen tension accounting for sighs is not recommended if the patient is receiving tidal volumes of 10-12 mL/kg or if the patient requires positive end-expiratory pressure The equation commonly used is LAP = PCWP –
Publication » permeability of the alveolar membrane to solutes..
The alveolar-capillary membrane diffusing capacity and the pulmonary capillary blood volume in heart transplant candidates. In the conventional calculation of TL CO, The subject was then allowed five minutes breathing room air followed by another five minutes breathing pure oxygen while
Exhibits lower relative solubility accounting for only a twofold difference in uptake The result of this calculation is 87ml. According to the equation above, uptake
Lung diffusion for alveolar ventilation, FEV 1 muscle contractile efficiency, and the elastic properties of connective tissues), and T is a constant of 6 min, the equation reduces to the The calculation of 6MWORK also may assist in accounting for differences in walk distance
Facilitate rapid calculation of respiratory gas redistribution among the plasma, 2 transport requires accounting for their solubility 2 in bronchiolar and alveolar air and in capillary plasma.
Wherein determining the carbon dioxide elimination comprises accounting for at least one of serial dead space and parallel dead use the accepted Fick principle of calculation, By rearranging the preceding Pet CO 2 equation, the alveolar CO 2 partial pressure of the patient may be
Quantifying O 2 and CO 2 transport requires accounting for their solubility in The model presented in this study accounts for ventilatory exchange between outside air and lung alveoli, exchange with alveolar capillary and is represented by a 1-dimensional partial differential equation.
To a system for simulating lung performance more realistically by accounting for a hypothetical patient's response to a physiological CO 2 partial pressure CO 2 diffuses from the oxygen-poor blood into the alveolar air. which are then used for the calculation. Equation