<?xml version="1.0"?>
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	<id>https://alpha.wikianesthesia.org/w/index.php?action=history&amp;feed=atom&amp;title=Respiratory_calculations</id>
	<title>Respiratory calculations - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://alpha.wikianesthesia.org/w/index.php?action=history&amp;feed=atom&amp;title=Respiratory_calculations"/>
	<link rel="alternate" type="text/html" href="https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;action=history"/>
	<updated>2026-06-27T15:03:57Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.37.1</generator>
	<entry>
		<id>https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;diff=11872&amp;oldid=prev</id>
		<title>Chris.Rishel: Added RSBI</title>
		<link rel="alternate" type="text/html" href="https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;diff=11872&amp;oldid=prev"/>
		<updated>2022-07-18T19:34:01Z</updated>

		<summary type="html">&lt;p&gt;Added RSBI&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:34, 18 July 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot;&gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;aaGradientO2&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;aaGradientO2&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;aaGradientO2Predicted&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient (predicted)&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;aaGradientO2Predicted&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient (predicted)&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;calculation id=&quot;rapidShallowBreathingIndex&quot;&gt;Rapid shallow breathing index (RSBI)&amp;lt;/calculation&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;weightBasedTidalVolume&amp;quot;&amp;gt;Weight-based tidal volume&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;weightBasedTidalVolume&amp;quot;&amp;gt;Weight-based tidal volume&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;__NOTABS__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;__NOTABS__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;__NOPRACTICEGROUPS__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;__NOPRACTICEGROUPS__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;__NOPERSONALNOTES__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;__NOPERSONALNOTES__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key mediawiki_test_alpha:diff::1.12:old-4883:rev-11872 --&gt;
&lt;/table&gt;</summary>
		<author><name>Chris.Rishel</name></author>
	</entry>
	<entry>
		<id>https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;diff=4883&amp;oldid=prev</id>
		<title>Chris.Rishel at 23:47, 5 April 2022</title>
		<link rel="alternate" type="text/html" href="https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;diff=4883&amp;oldid=prev"/>
		<updated>2022-04-05T23:47:36Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:47, 5 April 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l6&quot;&gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The {{lc:{{PAGENAME}}}} are powered by the [[MediaWiki:Gadget-calculator-patients-core.js|patients]], [[MediaWiki:Gadget-calculator-patients-bodyComposition.js|bodyComposition]] and [[MediaWiki:Gadget-calculator-respiratory.js|respiratory]] modules.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The {{lc:{{PAGENAME}}}} are powered by the [[MediaWiki:Gadget-calculator-patients-core.js|patients]], [[MediaWiki:Gadget-calculator-patients-bodyComposition.js|bodyComposition]] and [[MediaWiki:Gadget-calculator-respiratory.js|respiratory]] modules.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;/calculatordescription&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;/calculatordescription&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculatorsearch search-placeholder=&amp;quot;Search &amp;amp;quot;Aa gradient&amp;amp;quot; or &amp;amp;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quotPaO2&lt;/del&gt;&amp;amp;quot; or &amp;amp;quot;Low tidal volume&amp;amp;quot;&amp;quot; /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculatorsearch search-placeholder=&amp;quot;Search &amp;amp;quot;Aa gradient&amp;amp;quot; or &amp;amp;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quot;PaO2&lt;/ins&gt;&amp;amp;quot; or &amp;amp;quot;Low tidal volume&amp;amp;quot;&amp;quot; /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;paO2Predicted&amp;quot;&amp;gt;PaO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; (predicted)&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;paO2Predicted&amp;quot;&amp;gt;PaO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; (predicted)&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;aaGradientO2&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;&amp;lt;calculation id=&amp;quot;aaGradientO2&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient&amp;lt;/calculation&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key mediawiki_test_alpha:diff::1.12:old-4882:rev-4883 --&gt;
&lt;/table&gt;</summary>
		<author><name>Chris.Rishel</name></author>
	</entry>
	<entry>
		<id>https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;diff=4882&amp;oldid=prev</id>
		<title>Chris.Rishel: Created page with &quot;&lt;calculatormodule id=&quot;respiratory&quot; /&gt; &lt;calculatordescription&gt;The '''{{lc:{{PAGENAME}}}}''' provide calculations based upon patient demographic information provided in the fields above. Some calculations require additional patient data, for which fields are provided within the calculation. As with all clinical decision support tools, ultimately use clinical judgement when considering these results. * Some calculations may have important additional information which can be...&quot;</title>
		<link rel="alternate" type="text/html" href="https://alpha.wikianesthesia.org/w/index.php?title=Respiratory_calculations&amp;diff=4882&amp;oldid=prev"/>
		<updated>2022-04-05T23:47:05Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;lt;calculatormodule id=&amp;quot;respiratory&amp;quot; /&amp;gt; &amp;lt;calculatordescription&amp;gt;The &amp;#039;&amp;#039;&amp;#039;{{lc:{{PAGENAME}}}}&amp;#039;&amp;#039;&amp;#039; provide calculations based upon patient demographic information provided in the fields above. Some calculations require additional patient data, for which fields are provided within the calculation. As with all clinical decision support tools, ultimately use clinical judgement when considering these results. * Some calculations may have important additional information which can be...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;calculatormodule id=&amp;quot;respiratory&amp;quot; /&amp;gt;&lt;br /&gt;
&amp;lt;calculatordescription&amp;gt;The '''{{lc:{{PAGENAME}}}}''' provide calculations based upon patient demographic information provided in the fields above. Some calculations require additional patient data, for which fields are provided within the calculation. As with all clinical decision support tools, ultimately use clinical judgement when considering these results.&lt;br /&gt;
* Some calculations may have important additional information which can be shown using the question mark icon&lt;br /&gt;
===== Contributing to this calculator =====&lt;br /&gt;
Use the [[{{TALKPAGENAME}}|discussion page]] to leave feedback about the calculator. To contribute more substantially, see the [[WikiAnesthesia:Calculators guide|calculators guide]] to learn about the process to get developer access.&lt;br /&gt;
The {{lc:{{PAGENAME}}}} are powered by the [[MediaWiki:Gadget-calculator-patients-core.js|patients]], [[MediaWiki:Gadget-calculator-patients-bodyComposition.js|bodyComposition]] and [[MediaWiki:Gadget-calculator-respiratory.js|respiratory]] modules.&lt;br /&gt;
&amp;lt;/calculatordescription&amp;gt;&lt;br /&gt;
&amp;lt;calculatorsearch search-placeholder=&amp;quot;Search &amp;amp;quot;Aa gradient&amp;amp;quot; or &amp;amp;quotPaO2&amp;amp;quot; or &amp;amp;quot;Low tidal volume&amp;amp;quot;&amp;quot; /&amp;gt;&lt;br /&gt;
&amp;lt;calculation id=&amp;quot;paO2Predicted&amp;quot;&amp;gt;PaO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; (predicted)&amp;lt;/calculation&amp;gt;&lt;br /&gt;
&amp;lt;calculation id=&amp;quot;aaGradientO2&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient&amp;lt;/calculation&amp;gt;&lt;br /&gt;
&amp;lt;calculation id=&amp;quot;aaGradientO2Predicted&amp;quot;&amp;gt;A-a O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; gradient (predicted)&amp;lt;/calculation&amp;gt;&lt;br /&gt;
&amp;lt;calculation id=&amp;quot;weightBasedTidalVolume&amp;quot;&amp;gt;Weight-based tidal volume&amp;lt;/calculation&amp;gt;&lt;br /&gt;
__NOTABS__&lt;br /&gt;
__NOPRACTICEGROUPS__&lt;br /&gt;
__NOPERSONALNOTES__&lt;/div&gt;</summary>
		<author><name>Chris.Rishel</name></author>
	</entry>
</feed>