Difference between revisions of "Respiratory calculations"
From WikiAnesthesia
Chris Rishel (talk | contribs) (Created page with "<calculatormodule id="respiratory" /> <calculatordescription>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...") Tag: 2017 source edit |
Chris Rishel (talk | contribs) (Added RSBI) Tag: 2017 source edit |
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===== Contributing to this calculator ===== | ===== Contributing to this calculator ===== | ||
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. | 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. | ||
The {{lc:{{PAGENAME}}}} are powered by the [[MediaWiki:Gadget-calculator-patients-core.js|patients]], [[MediaWiki:Gadget-calculator | The {{lc:{{PAGENAME}}}} are powered by the [[MediaWiki:Gadget-calculator-patients-core.js|patients]], [[MediaWiki:Gadget-calculator-bodyComposition.js|bodyComposition]] and [[MediaWiki:Gadget-calculator-respiratory.js|respiratory]] modules. | ||
</calculatordescription> | </calculatordescription> | ||
<calculatorsearch search-placeholder="Search "Aa gradient" or "PaO2" or "Low tidal volume"" /> | <calculatorsearch search-placeholder="Search "Aa gradient" or "PaO2" or "Low tidal volume"" /> | ||
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<calculation id="aaGradientO2">A-a O<sub>2</sub> gradient</calculation> | <calculation id="aaGradientO2">A-a O<sub>2</sub> gradient</calculation> | ||
<calculation id="aaGradientO2Predicted">A-a O<sub>2</sub> gradient (predicted)</calculation> | <calculation id="aaGradientO2Predicted">A-a O<sub>2</sub> gradient (predicted)</calculation> | ||
<calculation id="rapidShallowBreathingIndex">Rapid shallow breathing index (RSBI)</calculation> | |||
<calculation id="weightBasedTidalVolume">Weight-based tidal volume</calculation> | <calculation id="weightBasedTidalVolume">Weight-based tidal volume</calculation> | ||
__NOTABS__ | __NOTABS__ | ||
__NOPRACTICEGROUPS__ | __NOPRACTICEGROUPS__ | ||
__NOPERSONALNOTES__ | __NOPERSONALNOTES__ | ||
Latest revision as of 13:26, 18 July 2022
The respiratory calculations 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 shown using the question mark icon
Contributing to this calculator
Use the discussion page to leave feedback about the calculator. To contribute more substantially, see the calculators guide to learn about the process to get developer access.
The respiratory calculations are powered by the patients, bodyComposition and respiratory modules.Search
100 mmHg
- McFarlane MJ, Imperiale TF. Use of the alveolar-arterial oxygen gradient in the diagnosis of pulmonary embolism. Am J Med. 1994 Jan;96(1):57-62. doi: 10.1016/0002-9343(94)90116-3. PMID: 8304364.
0 mmHg
- McFarlane MJ, Imperiale TF. Use of the alveolar-arterial oxygen gradient in the diagnosis of pulmonary embolism. Am J Med. 1994 Jan;96(1):57-62. doi: 10.1016/0002-9343(94)90116-3. PMID: 8304364.
Age required
- Hantzidiamantis PJ, Amaro E. Physiology, Alveolar to Arterial Oxygen Gradient. 2021 Feb 22. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan–. PMID: 31424737.
24 breaths/min/L
- RSBI < 105: Successful extubation likely
- RSBI > 105: Likely to fail extubation
- Yang KL, Tobin MJ. A prospective study of indexes predicting the outcome of trials of weaning from mechanical ventilation. N Engl J Med. 1991 May 23;324(21):1445-50. doi: 10.1056/NEJM199105233242101. PMID: 2023603.
Height, Sex required
- Calculated using ideal body weight
- Low tidal volume uses 6-8 mL/kg1
- Current evidence does not show benefit of intraoperative low tidal volumes for patients without pulmonary injury2
- Acute Respiratory Distress Syndrome Network, Brower RG, Matthay MA, Morris A, Schoenfeld D, Thompson BT, Wheeler A. Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. N Engl J Med. 2000 May 4;342(18):1301-8. doi: 10.1056/NEJM200005043421801. PMID: 10793162.
- Karalapillai D, Weinberg L, Peyton P, Ellard L, Hu R, Pearce B, Tan CO, Story D, O'Donnell M, Hamilton P, Oughton C, Galtieri J, Wilson A, Serpa Neto A, Eastwood G, Bellomo R, Jones DA. Effect of Intraoperative Low Tidal Volume vs Conventional Tidal Volume on Postoperative Pulmonary Complications in Patients Undergoing Major Surgery: A Randomized Clinical Trial. JAMA. 2020 Sep 1;324(9):848-858. doi: 10.1001/jama.2020.12866. PMID: 32870298; PMCID: PMC7489812.
Top contributors: Chris Rishel