{"id":136837,"date":"2024-09-11T11:23:46","date_gmt":"2024-09-11T11:23:46","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=136837"},"modified":"2024-09-11T11:23:48","modified_gmt":"2024-09-11T11:23:48","slug":"a-nurse-is-preparing-to-administer-dobutamine-12-mcg-kg-min-by-continuous-iv-infusion-to-a-preterm-newborn-who-weighs-2-kg","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/09\/11\/a-nurse-is-preparing-to-administer-dobutamine-12-mcg-kg-min-by-continuous-iv-infusion-to-a-preterm-newborn-who-weighs-2-kg\/","title":{"rendered":"A nurse is preparing to administer dobutamine 12 mcg\/kg\/min by continuous IV infusion to a preterm newborn who weighs 2 kg"},"content":{"rendered":"\n

A nurse is preparing to administer dobutamine 12 mcg\/kg\/min by continuous IV infusion to a preterm newborn who weighs 2 kg. Available is dobutamine 250 mg in 500 mL dextrose 5% in water. The nurse should set the IV pump to deliver how many mL\/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)<\/p>\n\n\n\n

The Correct Answer and Explanation is :<\/mark><\/strong><\/p>\n\n\n\n

To determine how many mL\/hr to set the IV pump for administering dobutamine to the preterm newborn, follow these steps:<\/p>\n\n\n\n

    \n
  1. Calculate the Total Dose Required per Minute:<\/strong>The prescribed dose is 12 mcg\/kg\/min. Given that the newborn weighs 2 kg, the total dose required per minute is:Total\u00a0dose=12\u2009mcg\/kg\/min\u00d72\u2009kg=24\u2009mcg\/min\\text{Total dose} = 12 \\, \\text{mcg\/kg\/min} \\times 2 \\, \\text{kg} = 24 \\, \\text{mcg\/min}Total\u00a0dose=12mcg\/kg\/min\u00d72kg=24mcg\/min<\/li>\n\n\n\n
  2. Convert the Dose from Micrograms to Milligrams:<\/strong>Since 1 mg = 1000 mcg, convert the dose into milligrams:24\u2009mcg\/min\u00f71000=0.024\u2009mg\/min24 \\, \\text{mcg\/min} \\div 1000 = 0.024 \\, \\text{mg\/min}24mcg\/min\u00f71000=0.024mg\/min<\/li>\n\n\n\n
  3. Determine the Concentration of Dobutamine Solution:<\/strong>The available solution is 250 mg in 500 mL. Therefore, the concentration of the solution is:Concentration=250\u2009mg500\u2009mL=0.5\u2009mg\/mL\\text{Concentration} = \\frac{250 \\, \\text{mg}}{500 \\, \\text{mL}} = 0.5 \\, \\text{mg\/mL}Concentration=500mL250mg\u200b=0.5mg\/mL<\/li>\n\n\n\n
  4. Calculate the Volume of Solution Needed per Minute:<\/strong>Use the concentration to determine how many mL of the solution is needed to deliver 0.024 mg\/min:Volume\u00a0required=0.024\u2009mg0.5\u2009mg\/mL=0.048\u2009mL\/min\\text{Volume required} = \\frac{0.024 \\, \\text{mg}}{0.5 \\, \\text{mg\/mL}} = 0.048 \\, \\text{mL\/min}Volume\u00a0required=0.5mg\/mL0.024mg\u200b=0.048mL\/min<\/li>\n\n\n\n
  5. Convert the Volume from mL\/min to mL\/hr:<\/strong>To find the hourly infusion rate:Volume\u00a0per\u00a0hour=0.048\u2009mL\/min\u00d760\u2009min\/hr=2.88\u2009mL\/hr\\text{Volume per hour} = 0.048 \\, \\text{mL\/min} \\times 60 \\, \\text{min\/hr} = 2.88 \\, \\text{mL\/hr}Volume\u00a0per\u00a0hour=0.048mL\/min\u00d760min\/hr=2.88mL\/hrRounding to the nearest tenth:Rounded\u00a0volume=2.9\u2009mL\/hr\\text{Rounded volume} = 2.9 \\, \\text{mL\/hr}Rounded\u00a0volume=2.9mL\/hr<\/li>\n<\/ol>\n\n\n\n

    Therefore, the nurse should set the IV pump to deliver 2.9 mL\/hr<\/strong>.<\/p>\n\n\n\n

    Explanation<\/h3>\n\n\n\n

    The calculation begins with determining the dose in mcg\/min based on the newborn\u2019s weight and prescribed dose. Next, this dose is converted to mg, the unit of concentration in the available solution. Using the concentration, we find out how many mL of the solution are required to deliver the calculated dose. Finally, to set the IV pump, the minute volume is converted to an hourly rate. The result, rounded to the nearest tenth, is used for setting the pump to ensure accurate medication administration.<\/p>\n","protected":false},"excerpt":{"rendered":"

    A nurse is preparing to administer dobutamine 12 mcg\/kg\/min by continuous IV infusion to a preterm newborn who weighs 2 kg. Available is dobutamine 250 mg in 500 mL dextrose 5% in water. The nurse should set the IV pump to deliver how many mL\/hr? (Round the answer to the nearest tenth. Use a leading […]<\/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-136837","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/136837","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=136837"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/136837\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=136837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=136837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=136837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}