{"id":141683,"date":"2024-09-21T06:46:50","date_gmt":"2024-09-21T06:46:50","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=141683"},"modified":"2024-09-21T06:46:53","modified_gmt":"2024-09-21T06:46:53","slug":"a-nurse-is-reviewing-a-new-prescription-for-dexamethasone-0-2-mg-kg-day-po-in-two-divided-doses-for-a-child-who-weighs-66-lb","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/09\/21\/a-nurse-is-reviewing-a-new-prescription-for-dexamethasone-0-2-mg-kg-day-po-in-two-divided-doses-for-a-child-who-weighs-66-lb\/","title":{"rendered":"A nurse is reviewing a new prescription for dexamethasone 0.2 mg\/kg\/day PO in two divided doses for a child who weighs 66 lb"},"content":{"rendered":"\n<p>A nurse is reviewing a new prescription for dexamethasone 0.2 mg\/kg\/day PO in two divided doses for a child who weighs 66 lb. The amount available is dexamethasone 0.5 mg\/5 mL elixir. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>To determine how many mL of dexamethasone to administer per dose, follow these steps:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Convert the child&#8217;s weight from pounds to kilograms:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The conversion factor is 1 kg = 2.2 lbs.<\/li>\n\n\n\n<li>( 66 \\text{ lb} \\div 2.2 \\text{ lb\/kg} = 30 \\text{ kg} )<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Calculate the total daily dosage of dexamethasone:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The prescription is 0.2 mg\/kg\/day.<\/li>\n\n\n\n<li>( 0.2 \\text{ mg\/kg\/day} \\times 30 \\text{ kg} = 6 \\text{ mg\/day} )<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Divide the total daily dosage into two doses:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>( 6 \\text{ mg\/day} \\div 2 = 3 \\text{ mg\/dose} )<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Determine how many mL to administer per dose:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The concentration of the elixir is 0.5 mg in 5 mL. First, calculate how much mL contains 3 mg.<\/li>\n\n\n\n<li>Set up a proportion: If 0.5 mg is in 5 mL, then:<br>[<br>3 \\text{ mg} \\times \\frac{5 \\text{ mL}}{0.5 \\text{ mg}} = 3 \\text{ mg} \\times 10 = 30 \\text{ mL}<br>]<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Final dosage per dose:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Since 3 mg requires 30 mL, but we need the correct amount for the concentration:<\/li>\n\n\n\n<li>Rearranging the formula, ( 5 \\text{ mL} \\times \\frac{3 \\text{ mg}}{0.5 \\text{ mg}} = 30 \\text{ mL} ) is incorrect. Instead, divide by the concentration per 5 mL:<br>[<br>\\text{Amount to administer} = 3 \\text{ mg} \\times \\frac{5 \\text{ mL}}{0.5 \\text{ mg}} = 30 \\text{ mL}<br>]<\/li>\n<\/ul>\n\n\n\n<p>However, let&#8217;s check:<\/p>\n\n\n\n<p>[<br>\\text{For 0.5 mg:} \\ 5 \\text{ mL} \\rightarrow \\text{For 3 mg:} \\ x \\rightarrow x = 3 \\times 10 = 30 \\text{ mL} \\ (incorrect)<br>]<\/p>\n\n\n\n<p>After adjustment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>We need ( 5 \\text{ mL} ) per ( 0.5 \\text{ mg} )<\/li>\n\n\n\n<li>To find ( mL ) for ( 3 \\text{ mg} ):<\/li>\n\n\n\n<li>Set up ( 0.5 mg \\rightarrow 5 mL ), ( 3 mg \\rightarrow x mL), solving gives ( 3 \\times 10 = 15 \\text{ mL}).<\/li>\n<\/ul>\n\n\n\n<p>Thus, <strong>the nurse should administer 15 mL per dose.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A nurse is reviewing a new prescription for dexamethasone 0.2 mg\/kg\/day PO in two divided doses for a child who weighs 66 lb. The amount available is dexamethasone 0.5 mg\/5 mL elixir. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-141683","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/141683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=141683"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/141683\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=141683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=141683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=141683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}