{"id":39,"date":"2020-11-02T18:24:24","date_gmt":"2020-11-02T18:24:24","guid":{"rendered":"https:\/\/pressbooks.ccconline.org\/accnur\/chapter\/5-6-using-dimensional-analysis\/"},"modified":"2024-01-17T19:31:58","modified_gmt":"2024-01-17T19:31:58","slug":"5-6-using-dimensional-analysis","status":"publish","type":"chapter","link":"https:\/\/pressbooks.ccconline.org\/accnur\/chapter\/5-6-using-dimensional-analysis\/","title":{"raw":"Using Dimensional Analysis","rendered":"Using Dimensional Analysis"},"content":{"raw":"A common method used to perform calculations with different units of measurement is called dimensional analysis. <strong>[pb_glossary id=\"2770\"]Dimensional analysis [\/pb_glossary]<\/strong> is a problem-solving technique where measurements are converted to equivalent units of measure by multiplying a given unit of measurement by a fractional form of 1 to obtain the desired unit of administration. This method is also referred to as creating proportions that state equivalent ratios. Equivalencies described in Section 5.7 are used to set up ratios with the fractional form of 1 to achieve the desired unit the problem is asking for. The units of measure that must be eliminated to solve the problem are set up on the diagonal so that they can be cancelled out. Lines are drawn during the problem-solving process to show that cancellation has occurred.<sup>[footnote]Esser, P. (2019). <em>Dimensional analysis in nursing.<\/em> Southwest Technical College. <a href=\"https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing<\/a>[\/footnote]<\/sup>\r\n\r\nWhen setting up a dosage calculation using dimensional analysis, it is important to begin by identifying the goal unit to be solved. After the goal unit is set, the remainder of the equation is set up using fractional forms of 1 and equivalencies to cancel out units to achieve the goal unit. It is important to understand that when using this problem-solving method, the numerator and denominator are interchangeable because they are expressing a relationship.<sup>[footnote]Esser, P. (2019). <em>Dimensional analysis in nursing.<\/em> Southwest Technical College. <a href=\"https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing<\/a>[\/footnote]<\/sup>\u00a0Let\u2019s practice using dimensional analysis to solve simple conversion problems of ounces to milliliters in <a href=\"\/chapter\/5-7-conversions\/\" target=\"_blank\" rel=\"noopener noreferrer\">Section 5.7 \"Conversions\"<\/a> to demonstrate the technique.\r\n<div class=\"textbox \">\r\n<h3 class=\"video\">Review of Dimensional Analysis on YouTube<sup>[footnote]RegisteredNurseRN. (2015, February 4). <em>Dimensional analysis for nursing &amp; nursing students for dosage calculations nursing school<\/em>\u00a0[Video]. YouTube. All rights reserved. Used with permission. <a href=\"https:\/\/youtu.be\/6dyM2puXbgc\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/youtu.be\/6dyM2puXbgc<\/a>[\/footnote]<\/sup><\/h3>\r\n[embed]https:\/\/youtu.be\/6dyM2puXbgc[\/embed]\r\n\r\n<\/div>","rendered":"<p>A common method used to perform calculations with different units of measurement is called dimensional analysis. <strong>Dimensional analysis <\/strong> is a problem-solving technique where measurements are converted to equivalent units of measure by multiplying a given unit of measurement by a fractional form of 1 to obtain the desired unit of administration. This method is also referred to as creating proportions that state equivalent ratios. Equivalencies described in Section 5.7 are used to set up ratios with the fractional form of 1 to achieve the desired unit the problem is asking for. The units of measure that must be eliminated to solve the problem are set up on the diagonal so that they can be cancelled out. Lines are drawn during the problem-solving process to show that cancellation has occurred.<sup><a class=\"footnote\" title=\"Esser, P. (2019). Dimensional analysis in nursing. Southwest Technical College. https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing\" id=\"return-footnote-39-1\" href=\"#footnote-39-1\" aria-label=\"Footnote 1\"><sup class=\"footnote\">[1]<\/sup><\/a><\/sup><\/p>\n<p>When setting up a dosage calculation using dimensional analysis, it is important to begin by identifying the goal unit to be solved. After the goal unit is set, the remainder of the equation is set up using fractional forms of 1 and equivalencies to cancel out units to achieve the goal unit. It is important to understand that when using this problem-solving method, the numerator and denominator are interchangeable because they are expressing a relationship.<sup><a class=\"footnote\" title=\"Esser, P. (2019). Dimensional analysis in nursing. Southwest Technical College. https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing\" id=\"return-footnote-39-2\" href=\"#footnote-39-2\" aria-label=\"Footnote 2\"><sup class=\"footnote\">[2]<\/sup><\/a><\/sup>\u00a0Let\u2019s practice using dimensional analysis to solve simple conversion problems of ounces to milliliters in <a href=\"\/chapter\/5-7-conversions\/\" target=\"_blank\" rel=\"noopener noreferrer\">Section 5.7 &#8220;Conversions&#8221;<\/a> to demonstrate the technique.<\/p>\n<div class=\"textbox\">\n<h3 class=\"video\">Review of Dimensional Analysis on YouTube<sup><a class=\"footnote\" title=\"RegisteredNurseRN. (2015, February 4). Dimensional analysis for nursing &amp; nursing students for dosage calculations nursing school\u00a0[Video]. YouTube. All rights reserved. Used with permission. https:\/\/youtu.be\/6dyM2puXbgc\" id=\"return-footnote-39-3\" href=\"#footnote-39-3\" aria-label=\"Footnote 3\"><sup class=\"footnote\">[3]<\/sup><\/a><\/sup><\/h3>\n<p><iframe loading=\"lazy\" id=\"oembed-1\" title=\"Dimensional Analysis for Nurses &amp; Nursing Students for Dosage Calculations Nursing School\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/6dyM2puXbgc?feature=oembed&#38;rel=0&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<\/div>\n<hr class=\"before-footnotes clear\" \/><div class=\"footnotes\"><ol><li id=\"footnote-39-1\">Esser, P. (2019). <em>Dimensional analysis in nursing.<\/em> Southwest Technical College. <a href=\"https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing<\/a> <a href=\"#return-footnote-39-1\" class=\"return-footnote\" aria-label=\"Return to footnote 1\">&crarr;<\/a><\/li><li id=\"footnote-39-2\">Esser, P. (2019). <em>Dimensional analysis in nursing.<\/em> Southwest Technical College. <a href=\"https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/swtcmathscience.wixsite.com\/swtcmath\/dimensional-analysis-in-nursing<\/a> <a href=\"#return-footnote-39-2\" class=\"return-footnote\" aria-label=\"Return to footnote 2\">&crarr;<\/a><\/li><li id=\"footnote-39-3\">RegisteredNurseRN. (2015, February 4). <em>Dimensional analysis for nursing &amp; nursing students for dosage calculations nursing school<\/em>\u00a0[Video]. YouTube. All rights reserved. Used with permission. <a href=\"https:\/\/youtu.be\/6dyM2puXbgc\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/youtu.be\/6dyM2puXbgc<\/a> <a href=\"#return-footnote-39-3\" class=\"return-footnote\" aria-label=\"Return to footnote 3\">&crarr;<\/a><\/li><\/ol><\/div><div class=\"glossary\"><span class=\"screen-reader-text\" id=\"definition\">definition<\/span><template id=\"term_39_2770\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_39_2770\"><div tabindex=\"-1\"><\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><\/div>","protected":false},"author":83,"menu_order":6,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":["open-resources-for-nursing-open-rn"],"pb_section_license":"cc-by"},"chapter-type":[48],"contributor":[60],"license":[52],"class_list":["post-39","chapter","type-chapter","status-publish","hentry","chapter-type-numberless","contributor-open-resources-for-nursing-open-rn","license-cc-by"],"part":22,"_links":{"self":[{"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/chapters\/39","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/wp\/v2\/users\/83"}],"version-history":[{"count":2,"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/chapters\/39\/revisions"}],"predecessor-version":[{"id":100,"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/chapters\/39\/revisions\/100"}],"part":[{"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/parts\/22"}],"metadata":[{"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/chapters\/39\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/wp\/v2\/media?parent=39"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/pressbooks\/v2\/chapter-type?post=39"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/wp\/v2\/contributor?post=39"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accnur\/wp-json\/wp\/v2\/license?post=39"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}