[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-573304-105":53,"doc-detail-573304-en":126},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":119,"head_meta":121,"extra_data":123,"updated_unix":125},105,"en","a-pocket-guide-to-drug-calculations","A Pocket Guide To Drug Calculations","","A Pocket Guide To Drug Calculations provides practical, step-by-step methods for determining medication amounts and administration rates. It covers calculating volumes for injectable and oral liquid/suspension formulations, deriving IV infusion rates from volume and time, converting minutes to hours, and computing IV drop rates using a drop factor. It also explains tablet/capsule dosing based on unit strengths, and weight-based dosing using dose-per-kg formulas, along with unit conversion principles.",{"@graph":63,"@context":118},[64,80,101],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/a-pocket-guide-to-drug-calculations/573304/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/a-pocket-guide-to-drug-calculations/573304.png","ImageObject",442,249,{"name":88,"@type":89},"SundayMiles","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-17","2026-10-14",true,{"@type":98,"interactionType":99,"userInteractionCount":79},"InteractionCounter",{"@type":100},"ViewAction",{"@type":102,"mainEntity":103},"FAQPage",[104,110,114],{"name":105,"@type":106,"acceptedAnswer":107},"How do you calculate the volume (mL) to administer for a liquid injectable dose?","Question",{"text":108,"@type":109},"Use the relationship: what you want equals what you have got times the volume the stock is in. Ensure the units match by converting if needed, then calculate mL and clinically sanity-check the result.","Answer",{"name":111,"@type":106,"acceptedAnswer":112},"How do you calculate an IV infusion rate in mL per hour?",{"text":113,"@type":109},"Compute infusion rate as volume in mL divided by time in hours (mL/hr). If the time is given in minutes, convert to hours by dividing minutes by 60, then recalculate.",{"name":115,"@type":106,"acceptedAnswer":116},"How do you calculate IV drop rates when using a giving set?",{"text":117,"@type":109},"Use the formula: drops per minute equals drop factor × volume in mL divided by time in minutes. Convert the infusion duration to minutes, then round to the nearest whole number and verify the calculation.","https://schema.org",{"og:url":78,"og:type":120,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":122,"canonical":78},"index,follow",{"doc_id":124,"site_id":56},573304,1792170942,{"code":4,"msg":5,"data":127},{"doc_id":124,"user_id":128,"nickname":88,"user_avatar":129,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":130,"file_id":131,"file_url":132,"file_type":133,"file_size":134,"view_count":79,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":73,"language":135,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":136,"faqs":137,"seo_title":138,"seo_description":61,"update_tm":139,"read_time":9},1099529839202,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","Volume To Give  \nAll injectables need to be in liquid form as we cannot administer a solid tablet into veins or muscle tissue.  \nOral medication can sometimes be calculated as a volume if it comes in suspension, syrup or soluble powder form.  \nLiquid formulations are more appropriate for those with swallowing problems, or when giving medicaiton via PEG or NG route.  \nFORMULA  \nwhat you want  \nwhat you have got  \nx volume it is in  \nWhat you want is what is prescribed for your patient.  \nWhat you have got is what is in stock to give to your patient. The volume it is in is how many mls that dose is available in.  \nYou need to ensure that the units are the same for what you want and what you have got- if not, convert the units to what you have got in stock.  \nEXAMPLE  \nYou need to give your patient 8mg of Drug C. Drug C is available as 10mg/2ml. How many mls will you give to your patient?  \nWhat you want = 8mg What you have got = 10mg Volume it is in = 2mls  \n8  \n10  \nx 2 = 1. 6mls  \nCheck that your answer makes sense clinically and have a colleague double check your calculation.  \nFlow Rates  \nMany patients require IV infusions and so it is important to know how to give these correctly.  \nThe advantage of giving medication, hydration or electrolytes IV is it is quick and effective, has an immediate effect and has 100% bioavailability as it bypasses the GI tract.  \nFORMULA  \nvolume in mls  \ntime in hours  \n= infusion rate in mls/hr  \nThe infusion rate is basically the volume of a solution or drug that is administered over a given amount of time and is calculated in millilitres per hour (mls/hr)  \nCheck that your answer makes sense clinically and have a colleague double check your calculation.  \nEXAMPLE  \nYour patient needs to be given 1000mls of IV solution over 8 hours. How many mls/hr will you need to give?  \nVolume in mls = 1000mls 1000  \n= 125ml/hr  \nTime in hours = 8 hours 8  \nEXAMPLE  \nYour patient needs to be given 100mls of IV solution over 30 minutes. How many mls/hr will you need to give?  \nVolume in mls = 1000mls  \nTime in hours = 30 minutes = 0.5 hours  \nTo convert minutes to hours we need to divide the number of minutes by 60 because there are 60 minutes in an hour. 30 minutes / 60 = 0.5 hours  \n100  \n= 200ml/hr  \n0.5  \nDrop Rates  \nAllows exact quantities of solution or medication to be given in an amount of time when mechanical pumps may not be available for whatever reason.  \nThe drop factor tells us how many drops of IV solution equal 1ml.  \nThe different sized tubing comes pre-calibrated to give exact drop factors and this information can be found printed on the packaging like the expiry date.  \nWhen infusions are given in drops/minute, the drops going into the chamber of IV solution need to be counted for a minute and the speed of infusion adjusted until the desired number of drops per minute is seen dropping into the chamber.  \n| FORMULA |  |  |\n| --- | --- | --- |\n|  | \u003Cbr>drop factor x volume in mls\u003Cbr>time in minutes\u003Cbr>= drops per minute |  |\n|  |  |  |\n\nCheck that your answer makes sense clinically and have a colleague double check your calculation.  \nThis formula can be remembered with the acronym DVT where D is drop factor, V is volume in mls, and T is time in minutes.  \nEXAMPLE  \nYour patient needs to be given 100mls of IV solution over 8 hours using a giving set with a drop factor of 20. How many drops per minute will you need to give to the nearest whole number?  \nDrop factor = 20  \nVolume in mls = 1000mls  \nTime in minutes = 8 hours = 480 minutes  \nTo convert hours to minutes we need to multiply the number of hours by 60 because there are 60 minutes in an hour. 8 hours x 60 minutes = 480 minutes  \n20 x 1000 480  \n= 41.6666667 = 42 drops per minute  \n| Tablets/Capsules\u003Cbr>The most common method of giving medication to patients. Check that your answer makes sense clinically.\u003Cbr>Have a colleague double check your calculation. |  |  |  |\n| --- | --- | --- | --- |\n|  | FORMULA\u003Cbr>\u003Cbr>what you want\u003Cbr>wha","cbCaipf6P19aqS1G","https://ap.wps.com/l/cbCaipf6P19aqS1G","pdf",288465,"English","# Drug calculation fundamentals\n## Volume calculations for liquids and suspensions\n## IV infusion flow rates\n## Drop rates (drops per minute)\n## Tablet/capsule dosing\n## Weight based doses\n## Unit conversions","[{\"question\":\"How do you calculate the volume (mL) to administer for a liquid injectable dose?\",\"answer\":\"Use the relationship: what you want equals what you have got times the volume the stock is in. Ensure the units match by converting if needed, then calculate mL and clinically sanity-check the result.\"},{\"question\":\"How do you calculate an IV infusion rate in mL per hour?\",\"answer\":\"Compute infusion rate as volume in mL divided by time in hours (mL/hr). If the time is given in minutes, convert to hours by dividing minutes by 60, then recalculate.\"},{\"question\":\"How do you calculate IV drop rates when using a giving set?\",\"answer\":\"Use the formula: drops per minute equals drop factor × volume in mL divided by time in minutes. Convert the infusion duration to minutes, then round to the nearest whole number and verify the calculation.\"}]","A Pocket Guide To Drug Calculations | PDF",1791936799]