\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{xkissmekatex (kissmekate)} \pdfinfo{ /Title (ventilator.pdf) /Creator (Cheatography) /Author (xkissmekatex (kissmekate)) /Subject (Ventilator Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{F51137} \definecolor{LightBackground}{HTML}{FEF0F2} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Ventilator Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{xkissmekatex (kissmekate)} via \textcolor{DarkBackground}{\uline{cheatography.com/33594/cs/10551/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}xkissmekatex (kissmekate) \\ \uline{cheatography.com/kissmekate} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 16th January, 2017.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{3} \begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Lung Physiology}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Ventilation} & • To {\bf{lower PaCO2, one must either }}increase RR or increase tidal volume{\bf{. \{\{nl\}\}• }}Minute ventilation = RR x VT**. \tn % Row Count 4 (+ 4) % Row 1 \SetRowColor{white} \seqsplit{Oxygenation} & • Monitored by O2 saturation and PaO2. \{\{nl\}\}• To increase PaO2 in the ventilated patient, one must either {\bf{increase FiO2 or PEEP}}. \{\{nl\}\}• Can also {\bf{extend inspiratory time}} fraction. \{\{nl\}\}• Can improve oxygen delivery by {\bf{increasing CO or hemoglobin}}. \{\{nl\}\}• Can decrease oxygen requirements by {\bf{decreasing work of breathing, agitation or feve}}r. \{\{nl\}\}• Remove pulmonary vasodilators like nitroprusside. \tn % Row Count 18 (+ 14) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Key Terms}} \tn % Row 0 \SetRowColor{LightBackground} Minute Ventilation & • {\bf{RRxVT}}. Should be {\bf{adjusted to achieve baseline PaCO2}}. \{\{nl\}\}• Initial VT of 8-10mL/kg is appropriate in most cases (lower in ARDS and COPD). \{\{nl\}\}• A {\bf{rate of 10-12 breaths/min}} is appropriate. \tn % Row Count 10 (+ 10) % Row 1 \SetRowColor{white} FiO2 & • Initially should be 100\%. \{\{nl\}\}• Quickly titrate down and use the lowest possible level to {\bf{maintain a PaO2 of 50-60 }}or higher. \{\{nl\}\}• Avoid oxygen toxicity with FiO2\textless{}60\% if possible. \{\{nl\}\}• If FiO2 of 0.5 does not result in adequate PaO2, {\bf{add PEEP or CPAP (allow reduction in FiO2)}}. \tn % Row Count 24 (+ 14) % Row 2 \SetRowColor{LightBackground} \seqsplit{Inspiratory/expiratory} ratio & • Duration of time allotted to inspiration compared to expiration in one delivered breath. Duarte of each breath is determined by set RR. Increased time in inspiration will proportionally decrease tie-in expiration. {\bf{1:2 is usually used}}. \tn % Row Count 35 (+ 11) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Key Terms (cont)}} \tn % Row 3 \SetRowColor{LightBackground} PEEP & • Positive pressure maintained at the end of passive exhalation to {\bf{keep alveoli open}}. \{\{nl\}\}• 2.5-10cm H2O is the initial setting. \{\{nl\}\}• Can be added to any mode of ventilation and used mostly in hypoxic respiratory failure. \{\{nl\}\}• Increases lung compliance and oxygenation ({\bf{improves gas exchange}}). \{\{nl\}\}• Prevents alveolar collapse and atelectasis. \{\{nl\}\}• Can cause barotrauma or {\bf{low CO (due to decreased venous return and increased PVR}}, esp. with hypovolemia). \tn % Row Count 22 (+ 22) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Mechanical Ventilation}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Indications} & • Significant respiratory distress or respiratory arrest. \{\{nl\}\}• Impaired or reduced level of consciousness with inability to protect the airway {\bf{(absent gag or cough reflex)}}. \{\{nl\}\}• {\bf{Metabolic acidosis}} without adequate compensation. \{\{nl\}\}• {\bf{Respiratory muscle fatigue}}. \{\{nl\}\}• Significant {\bf{hypoxemia (PaO2\textless{}70mmHg)}} or{\bf{ hypercapnia (PaCo2\textgreater{}50mmHg)}}. \{\{nl\}\}• Respiratory acidosis (pH\textless{}7.2) with hypercapnia. \tn % Row Count 14 (+ 14) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.24425 cm} x{3.73275 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Complications}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Complications} & • Anxiety and discomfort treated with sedation. \{\{nl\}\}• Tracheal secretions need regular suction. \{\{nl\}\}• Nosocomial pneumonia (if \textgreater{}72 hours), accidental extubation, \{\{nl\}\}• {\bf{Barotrauma (high P)}} \{\{nl\}\}• Oxygen toxicity (if FiO2\textgreater{}60\% for \textgreater{}2 days). \{\{nl\}\}• Hypotension (high intrathoracic pressure decreases VR). \{\{nl\}\}• Tracheomalacia (softening of cartilage) due to prolonged ETT. Prevent with tracheostomy if \textgreater{}2weeks. \{\{nl\}\}• Laryngeal damage, GI effects (stress ulcers, cholestasis). \tn % Row Count 17 (+ 17) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.24425 cm} x{3.73275 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Complications}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Complications} & • Anxiety and discomfort treated with sedation. \{\{nl\}\}• Tracheal secretions need regular suction. \{\{nl\}\}• Nosocomial pneumonia (if \textgreater{}72 hours), accidental extubation, \{\{nl\}\}• {\bf{Barotrauma (high P)}} \{\{nl\}\}• Oxygen toxicity (if FiO2\textgreater{}60\% for \textgreater{}2 days). \{\{nl\}\}• Hypotension (high intrathoracic pressure decreases VR). \{\{nl\}\}• Tracheomalacia (softening of cartilage) due to prolonged ETT. Prevent with tracheostomy if \textgreater{}2weeks. \{\{nl\}\}• Laryngeal damage, GI effects (stress ulcers, cholestasis). \tn % Row Count 17 (+ 17) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Modes}} \tn % Row 0 \SetRowColor{LightBackground} Assisted Controlled Ventilation & • Initial mode used in respiratory failure. \{\{nl\}\}• Guarantees a {\bf{"backup" minute ventilation}}. \{\{nl\}\}• The ventilator delivers a breath of {\bf{predetermined tidal volume}} when the patient initiates a breath. \{\{nl\}\}• If the patient does not initiate a breath, the ventilator takes control and {\bf{delivers a breath at a predetermined rate}}. \{\{nl\}\}• {\bf{All breaths are deviled by the ventilator}}. \{\{nl\}\}• The patient can go over the determined rate but not under, and {\bf{every breath is a determined TV}}. \tn % Row Count 26 (+ 26) % Row 1 \SetRowColor{white} Synchronous Intermittent Mandatory Ventilation & • Patients can breath above the mandatory rate without help from the ventilator. \{\{nl\}\}• The tidal volume of extra breaths is not determined by the ventilator. \{\{nl\}\}• When the patient breathes spontaneously, there is no preset volume, but the {\bf{patient has a guaranteed predetermined rate}}. \{\{nl\}\}• Delivers the mandatory breath in synchrony with patient's initiated spontaneous breath (so they do not overlap). \{\{nl\}\}• Good for support of ventilation and weaning. \tn % Row Count 50 (+ 24) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Modes (cont)}} \tn % Row 2 \SetRowColor{LightBackground} Continuous Positive Airway Pressure (CPAP) & • {\bf{Positive pressure (0-20cm H2O) is delivered}} continuously during expiration and inspiration, but no volume breaths are delivered. \{\{nl\}\}• The patient breaths on their own. \{\{nl\}\}• The only {\bf{parameters to set are PEEP and pressure support}}. \{\{nl\}\}• If the patient is being weaned, CPAP can be used to assess whether they can be extubated. \tn % Row Count 18 (+ 18) % Row 3 \SetRowColor{white} Pressure Support Ventilation & • Mostly during weaning trials. \{\{nl\}\}• Pressure is delivered with an initiated breath to assist breathing. \{\{nl\}\}• Pressure is not continuous and only responds to initiated breaths. \{\{nl\}\}• It {\bf{enhances respiratory efforts made by the patient}}. \{\{nl\}\}• PEEP may be added. \tn % Row Count 33 (+ 15) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}