https://wikimd.org/index.php?action=history&feed=atom&title=Alveolar_gas_equation 2026-05-01T14:21:51Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Alveolar_gas_equation&diff=6529682&oldid=prev 2025-03-18T18:24:16Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:24, 18 March 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l38">Line 38:</td> <td colspan="2" class="diff-lineno">Line 38:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Medicine-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Medicine-stub}}</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{No image}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{No image}}</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">__NOINDEX__</del></div></td><td colspan="2" class="diff-side-added"></td></tr> </table>

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<p>CSV import</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 03:49, 17 March 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l38">Line 38:</td> <td colspan="2" class="diff-lineno">Line 38:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Medicine-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Medicine-stub}}</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{No image}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{No image}}</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">__NOINDEX__</ins></div></td></tr> </table>

Prab https://wikimd.org/index.php?title=Alveolar_gas_equation&diff=6205261&oldid=prev 2025-02-10T05:58:31Z

<p>CSV import</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 05:58, 10 February 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l37">Line 37:</td> <td colspan="2" class="diff-lineno">Line 37:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Anesthesiology]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Anesthesiology]]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Medicine-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Medicine-stub}}</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{No image}}</ins></div></td></tr> </table>

Prab https://wikimd.org/index.php?title=Alveolar_gas_equation&diff=5326836&oldid=prev 2024-02-28T21:54:23Z

<p>CSV import</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Alveolar gas equation&#039;&#039;&#039; is a mathematical formula used in [[pulmonology]] and [[anesthesiology]] to calculate the partial pressure of oxygen in the alveoli of the lungs. The equation is essential in understanding the gas exchange process in the lungs and is often used in the diagnosis and treatment of respiratory diseases.<br /> <br /> == Overview ==<br /> <br /> The alveolar gas equation is derived from the ideal gas law and the principles of gas exchange in the lungs. It is used to estimate the alveolar concentration of oxygen (PaO2), which is the amount of oxygen available for diffusion into the blood.<br /> <br /> The equation is as follows:<br /> <br /> : PAO2 = FiO2 (Patm - PH2O) - PaCO2/R<br /> <br /> Where:<br /> * PAO2 is the partial pressure of oxygen in the alveoli<br /> * FiO2 is the fraction of inspired oxygen<br /> * Patm is the atmospheric pressure<br /> * PH2O is the partial pressure of water vapor<br /> * PaCO2 is the partial pressure of carbon dioxide in arterial blood<br /> * R is the respiratory quotient<br /> <br /> == Application ==<br /> <br /> The alveolar gas equation is used in clinical practice to assess the efficiency of gas exchange in the lungs. It is particularly useful in the diagnosis and management of conditions such as [[chronic obstructive pulmonary disease]] (COPD), [[pulmonary edema]], and [[acute respiratory distress syndrome]] (ARDS).<br /> <br /> By comparing the calculated PAO2 with the measured PaO2 (from arterial blood gas analysis), clinicians can determine whether a patient has a ventilation-perfusion mismatch or a diffusion limitation, both of which can lead to hypoxemia.<br /> <br /> == Limitations ==<br /> <br /> While the alveolar gas equation is a useful tool, it has several limitations. It assumes a steady state of gas exchange, which may not be the case in rapidly changing conditions. It also does not account for variations in alveolar ventilation or regional differences in gas exchange within the lungs.<br /> <br /> == See also ==<br /> <br /> * [[Arterial blood gas]]<br /> * [[Oxygen therapy]]<br /> * [[Respiratory physiology]]<br /> <br /> [[Category:Respiratory physiology]]<br /> [[Category:Pulmonology]]<br /> [[Category:Anesthesiology]]<br /> {{Medicine-stub}}</div>

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