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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>FiO2 Calculator</title>
<link rel="stylesheet" href="style.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css"
integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
</head>
<body>
<header>
<h4>FiO2 Calculator</h4>
<div class="nav">
<ul>
<li>
<a href="aboutUs.html" class="btn btn-secondary" role="button" aria-pressed="true">
About Us
</a>
</li>
</ul>
</div>
</header>
<nav class="navbar navbar-expand navbar-light bg-light">
<div class="collapse navbar-collapse justify-content-center" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="index.html">Home</a>
</li>
<li class="nav-item active">
<div class="dropdown">
<a class="nav-link active dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown"
aria-haspopup="true" aria-expanded="false">
Calculators
</a>
<div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
<a class="dropdown-item" href="finer.html">Finer</a>
<a class="dropdown-item" href="bb.html">Benaron-Benitz</a>
<a class="dropdown-item" href="hybrid.html">Hybrid</a>
</div>
</div>
</li>
<li class="nav-item active">
<div class="dropdown">
<a class="nav-link active dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown"
aria-haspopup="true" aria-expanded="false">
How it Works
</a>
<div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
<a class="dropdown-item" href="finerHIW.html">Finer</a>
<a class="dropdown-item" href="bbHIW.html">Benaron-Benitz</a>
<a class="dropdown-item" href="hybridHIW.html">Hybrid</a>
</div>
</div>
</li>
</ul>
</div>
</nav>
<div class="page-content">
<h5>More details on Finer:</h5>
<p>The 'Finer' model implements the equation derived by Finer et al., <a
href="https://pubmed.ncbi.nlm.nih.gov/8776266/">Pediatr Pulmonol 1996;21(1):48-51</a> with <a
href="http://nicutools.org/">modifications</a> by Dr Michael Hewson, NICU, Wellington Hospital. These include
the use of an oxygen blender altering the cannula oxygen concentration, \(B\) and
enforcing a conditional statement when the gas flow exceeds minute ventilation, \(\dot V_E\) : </p>
<img class="eq-img" src="nicu.png" />
<br />
<p style="line-height: 2;">Here, \(\dot V_E = V_T\times R =5.5\times W\times R\), with tidal volume \(V_T\) (mL/kg),
respiratory rate \(R\) (breaths/min), and weight \(W\) (kg).</p>
<p>In the construction of this formula, Finer et al. assume a tidal volume \(V_T\) of 5.5 ml/kg.</p>
<p>The use of this model for flow rates above 200 mL/min is not recommended since the Finer model was not made or
validated
for higher low flow rates.</p>
<p>If selecting flow rate for the preferred output, the formula above is inverted to solve for \(F\).</p>
</br>
<p>
<b>Note:</b> This Page uses MathJax to display equations under the <a
href="https://github.com/mathjax/MathJax/blob/master/LICENSE">Apache License, Version 2.0</a>.
</p>
<p xmlns:cc="http://creativecommons.org/ns#">This work is licensed under <a
href="http://creativecommons.org/licenses/by-nc-sa/4.0/?ref=chooser-v1" target="_blank"
rel="license noopener noreferrer" style="display:inline-block;">CC BY-NC-SA 4.0<img
style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
src="https://mirrors.creativecommons.org/presskit/icons/cc.svg?ref=chooser-v1"><img
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src="https://mirrors.creativecommons.org/presskit/icons/by.svg?ref=chooser-v1"><img
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style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
src="https://mirrors.creativecommons.org/presskit/icons/sa.svg?ref=chooser-v1"></a></p>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
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</body>
</html>