{"id":134735,"date":"2024-09-02T11:08:32","date_gmt":"2024-09-02T11:08:32","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=134735"},"modified":"2024-09-02T11:08:34","modified_gmt":"2024-09-02T11:08:34","slug":"a-nurse-is-preparing-to-administer-phenytoin-75-mg-po","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/09\/02\/a-nurse-is-preparing-to-administer-phenytoin-75-mg-po\/","title":{"rendered":"A nurse is preparing to administer phenytoin 75 mg PO."},"content":{"rendered":"\n

A nurse is preparing to administer phenytoin 75 mg PO. Available is phenytoin suspension 25 mg\/5 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number.<\/p>\n\n\n\n

Use a leading zero if it applies.<\/p>\n\n\n\n

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 milliliters (mL) of phenytoin suspension the nurse should administer, follow these steps:<\/p>\n\n\n\n

    \n
  1. Identify the required dosage and the concentration of the suspension:<\/strong>\n
      \n
    • Required dosage: 75 mg<\/li>\n\n\n\n
    • Concentration of the phenytoin suspension: 25 mg\/5 mL<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Set up the proportion to find out how many mL of suspension are needed to get 75 mg of phenytoin.<\/strong>The concentration of the phenytoin suspension is 25 mg in 5 mL. To find the volume (V) needed for a 75 mg dose, set up the following proportion:25\u00a0mg5\u00a0mL=75\u00a0mgV\u00a0mL\\frac{25 \\text{ mg}}{5 \\text{ mL}} = \\frac{75 \\text{ mg}}{V \\text{ mL}}5\u00a0mL25\u00a0mg\u200b=V\u00a0mL75\u00a0mg\u200b<\/li>\n\n\n\n
    • Solve for V:<\/strong>25\u00a0mg5\u00a0mL=75\u00a0mgV\u00a0mL\\frac{25 \\text{ mg}}{5 \\text{ mL}} = \\frac{75 \\text{ mg}}{V \\text{ mL}}5\u00a0mL25\u00a0mg\u200b=V\u00a0mL75\u00a0mg\u200bCross-multiply to solve for V:25\u00a0mg\u00d7V\u00a0mL=75\u00a0mg\u00d75\u00a0mL25 \\text{ mg} \\times V \\text{ mL} = 75 \\text{ mg} \\times 5 \\text{ mL}25\u00a0mg\u00d7V\u00a0mL=75\u00a0mg\u00d75\u00a0mL 25V=37525V = 37525V=375 V=37525V = \\frac{375}{25}V=25375\u200b V=15\u00a0mLV = 15 \\text{ mL}V=15\u00a0mL<\/li>\n\n\n\n
    • Round the answer to the nearest whole number:<\/strong>In this case, 15 mL is already a whole number, so no rounding is needed.<\/li>\n<\/ol>\n\n\n\n

      Explanation:<\/strong><\/p>\n\n\n\n

      Phenytoin is provided in a suspension with a concentration of 25 mg per 5 mL. The desired dosage is 75 mg. To determine the volume required, you use a proportion based on the concentration of the suspension. By setting up a proportion where 25 mg is to 5 mL as 75 mg is to V mL, and solving for V, you determine that 15 mL of the suspension is needed to deliver 75 mg of phenytoin.<\/p>\n\n\n\n

      This calculation ensures accurate medication administration, which is crucial for effective patient care and avoiding medication errors. The step-by-step approach to setting up and solving the proportion helps in understanding and performing accurate dosage calculations in clinical settings.<\/p>\n","protected":false},"excerpt":{"rendered":"

      A nurse is preparing to administer phenytoin 75 mg PO. Available is phenytoin suspension 25 mg\/5 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero. The Correct Answer and Explanation is: To determine how many […]<\/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-134735","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/134735","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=134735"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/134735\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=134735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=134735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=134735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}