This is more so in a pediatric patient, or calculating doses of infusions used in critical care like Dopamine, Dobutamin, Nitroglycerin, Lidocaine, etc. Some drug calculations may involve working out the volume of solution needed to give the required dose of a drug. This site is free and has a mixture of numeracy and nursing calculation quizzes. Doing the math One way to tackle these types of questions is to set up a simple equation where X is the variable you are trying to find. Drug calculations for intravenous (IV) medicines and infusions are more complex than those... CPD articles. Log in to leave feedback . Formula example: Let's now apply the formula to the 500 microgram tablets. This quiz provides the opportunity to refresh your knowledge on performing Drug Calculations! We will now look in more detail at the two main ways of calculating dosage: mental arithmetic and using a formula. The most common system we will use is the metric system. No matter which drug you’re giving, if it is ordered as mcg/kg/minute, you can use the same simplified equa- drugs (such as dopamine, dobutamine, nitro-prusside, phenylephrine, cisatracurium, and in some cas-es epinephrine) are delivered I.V. 10 Jan 2018. Information. Dosage Calculation – Everything you need to know! Many a times we have to calculate the drug doses based on the patient’s weight. Nursing calculations . Drug calculations 1. Dosage calculations for nurses – drug math made easy! I have always, always, always struggled in math.....so the easier the better for me. Student nurses need to get this! What an excellent resource you have created for nursing students! WEBSITES: www.testandcalc.com. www.snap.nhs.uk . Remember, for either of these approaches you must first be sure that the stock dosage (the drug in liquid form) is in the same units as the required dosage (the prescription). Review the formulae below: Volume required = 'Strength Required / Stock Strength x Volume of Stock Solution /1' Tablets = PO Dose: Liquids Doses liquid medications such as Tylenol®, Kayexalate® and lactulose. Nursing Calculations. These calculations are mainly used for children, who need just a fraction of the adult dose. Calculating drip rates for drugs ordered as mcg/kg/minute Some I.V. Nursing; Using Formulae to Work Out Drug Dosages; Using Formulae to Work Out Drug Dosages. Please do not hesitate to contact either an HR officer or a nurse from the Department of Nursing Development if you need to discuss any concerns. Dosage calculations based on body weight are calculated in two main stages. The following videos are an introduction to basic drug calculations for nursing. Nursing calculations. 8 Injectable Medication Calculations OBJECTIVES • Calculate and measure intradermal, subcutaneous, and intramuscular doses. Im preparing for my first drug calculation test and am hoping for some input on what others think is the easiest drug calc method/formula. Features: Calculating doses Units of measure Equivalences Conversions mL/hour DPM IV Rates Thanks Debbie (ED Nurse) for the idea of having it hang up-side-down so it’s the right way up when you look at it! This site has nursing calculation quizzes with answers that you can access immediately – no need to download. Authors: Kerri Wright, the original author, is a nurse, psychotherapist, and author of Drug Calculations for Nurses; the article was updated by Eileen Shepherd, clinical editor of Nursing … drugs are ordered and given per weight (usually in kg). Dosage calculations made incredibly easy for nursing students using dimensional analysis. In this case, the sum is 3000/500 = 6 tablets, which can be safely given. This article will provide a simple and concise method for accurate computation using basic calculations (see Quick reference: Universal formulas). Formulae can make your life much easier when working out doses of tablets and pills, IV drip rates and more, as long as you know how they work. Nurses understand the importance of accuracy with Drug Calculations. Nursing competence in drug calculations has been a cause for concern (Duffin, 2000; Coombes, 2000). When calculating drug doses for solid dosage forms like tablets, multiply the patient's weight in kg by the relative dose (in mg/kg) to get your drug dose. Additional Tips: As long as you know the basic formulas of drug calculations, you will never be lost in finding the desired dosage for your patient. 4. • Calculate and combine doses for two medications to be mixed in one syringe to the nearest measurable dose. By Claire Boyd . Essential introduction for those new to calculating drug dosages If you are new to applying mathematical principles to calculating drug dosages for patients this handy tool will help you on your journey. Otherwise it would be 525, altering the mg/min you will give. Stage 1: Using the formula below, calculate the total required dosage based on given the body weight. For example: You are asked to give a patient weighing 50 kg a 1 mg/kg IV injection. This is a good book to start with. Calculate- using the formula. Stage 2: Apply the x Q formula to calculate the actual amount of medication to be administered. Also it is pack with practice NCLEX question for drug calculation . In this tutorial . Dr. Rachel Silva DNP May 9, 2015 at 11:06 am. Answer: 5 mg x … Home. The volume will still be 500. Identify the information from a calculation problem to place into the formula given 2. 11 Oct 2017. Specimen Drug Cupboard.pdf [pdf] 562KB; Specimen NUH medicines management test paper.pdf [pdf] 137KB; Calculators are not permitted, but the IV infusion calculation formula will be available. For the dosage, this refers to the prescribed amount of the drug you plan to take in mg per kg of body weight. Hutton (1998a) suggests that a degree of ‘de-skilling’ has resulted from the increasingly user-friendliness of drug preparations and widespread use of electronic drip counters. It is easy to read and has lots of exercises to work from. Nurses frequently use various types of mathematical calculation as part of their clinical practice, mainly when administering drugs. Nursing Times [online]; 113, 10, 31-34. the same originally calculated. Calculate the volume to administer for medications in… 74 thoughts on “ Dosage calculations the easy way! CHAPTER 15 Dosage Calculation Using the Formula Method Objectives After reviewing this chapter, you should be able to: 1. 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