For ease of use and to avoid having to make calculations, doses are given according to the body weight of the child. Microsoft powerpoint pharmacology drug dosage calculations. This video explains why and teaches you how to do it safely using a simple 4 step method. Pediatric medication calculations 4 step method made. Set up a series of ratios and proportions to solve a single dosage calculation. Pediatric guidelines for iv medication administration. The pediatric dosage formula can be calculated only for the kids below 12. Learn dosage calculations with this free tutorial complete with explanations examples and practice questions dosagehelpcom helping nursing students prepare for medication exams by explaining dosage calculations this website provides a dosage calculations tutorial.
Convert pediatric weights from pounds to kilograms. Paul, shubhra prakash assistant registrar rajshahi shishuchildren hospital. Full text full text is available as a scanned copy of the original print version. How to do medication dosage calculations basics youtube. Dosage calculation using the formula method basicmedical key. Calculation of dose required for a child using bodyweight formula method childs weight kg. Know the patients weight in kg if your calculation is weight based. Calculate child pediatric dosage using youngs rule. The drug label on the medicine indicates that the medicine is supplied in 60 mg per tablet. No longer do we need separate calculation methods for pediatrics or nicu. Calculate safe dose in mg per kg as noted in reputable drug resource.
Pediatric medication dosages are based on a childs weight. Standard formula for pediatrics needs to be memorized. Identify the information from a calculation problem to place into the formula given 2. Youngs rule is a rule for evaluating the dosage of medicine for a child by adding 12 to the childs age, and dividing the sum by the age of the child, then dividing the adult dose by the result obtained.
As a result, you will need to calculate out the correct dosage for the child based on his or her weight. Calculating dosages for children is different than calculating dosages for adults. A doctor orders 200 mg of rocephin to be taken by a 15. Terms adolescence body surface area childhood infant neonate objectives upon completion of this chapter, the technician student will be able to. A child of 12 years 39 kg brought to the hospital with fever in temperature of 100c. If actual body weight is % of ideal, use adjusted body weight. In order to calculate pediatric dose, several different rules such as nomogram method, frieds rule, youngs rule and clarks rule may be used to determine the correct dosage of medication for a pediatric patient. Emergency drug doses for infants and children american. Therefore, one dose will be one half 12 tablet h 60 mg.
How to calculate child pediatric dosage using youngs rule tutorial definition. The dose required is 40 mgkgday divided bid and the. Drug absorption there is a wide range of routes of drug absorption in children. Applicants to the bridge program must take the dosage calculation competency test or be currently enrolled in nur 5. How to do medication dosage calculations basics rn kid. Nursing central is an awardwinning, complete mobile solution for nurses and students. This guideline for emergency drug dosing has been prepared for physicians requiring assistance with drug doses for pediatric patients. These safe dosage calculation problems were designed to help you better understand how to apply basic conversions to advanced drug problems. Nahat articulated that the selection of formulas for calculation of pediatric dose should be extensively careful 4. If the quantity of drug to b e given is known, and the concentration of the drug in solution is known, we can calculate the volume of liquid required. This course demonstrates two commonly used methods. Techniques of calculation and prescribing drug dosage in pediatric practice dr. Since a fraction of a drop is not possible to give to a patient, it is usual to round the answers to the nearest whole number.
A formula for calculating the dosages of drugs in emergencies. Pediatric dosage rule, pediatric dosing rule, calculate. Caring for children who are ill challenges every nurse to function at the highest level of professional competence. Pediatric dosage calculations pediatric dosage calculations most drugs in children are dosed according to body weight mgkg or body surface area bsa mgm2. Calculate solution, liquid or syrup medicine volume to administer given the desired dose, quantity and have dose using this nursing oral drug dosage calculator. Aminoglycoside dosing for pediatrics university health system necessary patient information for dosing body weight use actual body weight unless actual body weight is % of ibw. Overview of clinical pharmacokinetics in pediatrics. Care must be taken to properly convert body weig ht from pounds to kilograms 1 kg 2. Concentration the concentration is found by dividing the. To view other topics, please sign in or purchase a subscription. Study guide with sample questions dosage calculation. Remember that a formula often used for working out how many tablets to take or for a drug taken. Aminoglycoside dosing for pediatrics university health system. Clarks rule and youngs rule, calculating pediatric and adult dosages.
Ordered amount of drug x 75 pts weight x 60 minhr 33. Determine in which units your drug is measured unitshour, mghour, or mcgkgminute. Pediatric guidelines for iv medication administration note. How to solve drug calculations identify what type of drug calculation and as a first step, use common sense to estimate a rough answer. This section gives the doses of the drugs mentioned in these guidelines that are suitable for infants and children. This is necessary for drugs in liquid form as prescriptions are usually by weight, whereas the drugs are labelled by concentration. Use the universal formula below and then divide your final answer by the patients weight in kg to arrive at mcgkgminute. Pediatric dosage calculations daviss drug guide nursing central. In nursing school, you will be required to learn how to solve these types of problems, along with other drug and dosage calculations. Information on drug indications and side effects has been purposely limited. As errors in calculating drug doses are common in hospital practice worldwide, calculations should be avoided, when possible.
Paediatric pharmacokinetics and drug doses australian. Study guide with sample questions dosage calculation competency applicants to the lpntoassociate degree bridgenursing program must document competency indosage calculation that is equivalent to the content covered in nur 5. The minimum accuracy rate is 78%, and is the same as the minimum pass rate for traditional four semester nursing students those who are not lpns who pass nur 5. Safe dose dosage range pediatric calculations nursing drug math video 7. It is important that the childs most recent weight in kilograms is entered into the health information system so that drug dosage calculations are accurate. Convert childs weight in pounds to kilograms rounded to nearest tenth. The medication label shows that 75150 mgkg per day is the appropriate dosage range. Objective to characterize the nature and potential adverse consequences of. Demonstrate competency in basic arithmetic function, including the four drug calculation methods ratio and proportion, fractional equation, formula, and dimensional analysis provides comprehensive coverage of calculations used in specialty areas such as critical care, pediatrics, oncology, picu, nicu, coronary care, and neurologic care. Formula method each method will allow an accurate calculation of the medication dosage. Most health care professionals become comfortable with one method and use that method exclusively. There are several methods for calculating pediatric medication dosage based on various combinations of age, height, weight, body surface. W e can adapt our previous formula for tablets to read.
There is no standard based on age since a childs size can vary greatly. I have developed a universal formula for readily calculating pediatric or adult dosages of cardiovascular drugs given by infusion in an emergency. Use your streamlined equation, but you will have an x to solve for. Drug dosages and regimens pocket book of hospital care. But children can require very different medication doses compared to adults. The drugs included are not intended to be exhaustive. Review of dosage calculation methods there are three basic methods for calculating medication dosages. There are several methods to find the pediatric dosage, it is found using the age, weight, and height of the child. Drug made up from stock solution this example illustrates how to work out injections or orally taken drugs made up from stock solution for example, working out how many mls to inject when the drug is in a stock solution. Pediatric parenteral nutrition goals and objectives at the end of this lecture, participants will be able to. Pharmacology drug dosage calculations shelby county ems training division. Dosage calculations based on body weight dosage calculations based on body weight are required when the dosage ordered and administered is dependent on the weight of the patient.
Formulas for calculating medication dosage basic formula d x q x a where d desired is the dosage the physician ordered, a available is the dosage strength as stated on the medication label, and q quantity is the volume in which the dosage strength is available e. In paediatric practice medication dosages are calculated based on the childs weight making the dosages much more precise. Youngs rule expression used to determine a drug dosage for children. Get a printable copy pdf file of the complete article 824k, or click on a page image below to browse page by page. Physician orders 500 mg of ibuprofen desired dose for a patient and you have 250 mg quantity on hand tablets quantity of solution on hand solution. Based on the second model list of essential medicines for children. Commercial unitdose packaging sometimes does not include dosages for children, so the nurse must calculate the correct dosage to provide safe and effective care. Calculate the dose of amoxicillin suspension in mls for otitis media for a 1yrold child weighing 22 lb. Overview abbreviations metric conversions desired dose concentrations drip rates medications dopamine and lidocaine abbreviations cc cubic centimeter dd desired dose gm gram. Giving medication is one of the most important nursing responsibilities. Pediatric medication calculations flashcards quizlet. Weight in kg dosage per kg y required dosage example. Dose calculation errors constitute a significant part of prescribing errors which might have resulted from informal teaching of. In many cases, drawing a picture that visually represents the problem is often a helpful strategy.
Calculation of doses for children ptcb practice test. Most drugs in children are dosed according to body weight mgkg or body surface area bsa mgm2. The correct dosage is calculated by dividing the childs age by an amount equal to the childs age plus 12 and then multiplying by the usual adult dose. Most reference manuals for medications focus primarily on the adult dosages. Clinical assistant professorclinical pharmacist pediatrics the university of illinois college of pharmacy the speaker has no conflict to disclose. Calculate the number of tablets or capsules to administer 4.
This feature is also likely to be one of the most important new features of the chart that will help reduce dosing errors which are the most common medication errors in paediatrics and associated harm. Determine what information you will need to solve for, in addition to any given information, to properly calculate dosages. Pediatric dosage calculations is a sample topic from the daviss drug guide. For most drug calculation problems, there is more than one method for arriving at the correct answer. The formula, its derivation, and specific examples of its use have been submitted to members of the american heart association responsible for overseeing advanced cardiac life support acls. The same formula can be used for dosage calculations where the medication is available. Calculation of intravenous drip rates in these types of calculations, for a given volume, time period, and drop factor gttsml, the required iv flow rate in drops per minute gttsmin is calculated.
Even for vancomycin, for which therapeutic drug monitoring is commonly performed, this information is not available. We will use the dosage formula to calculate the correct amount of medication for one dose. Calculate doses based on milligrams per kilogram and micrograms per kilogram of body weight. Background calculation errors in prescribing are a wellrecognized problem. Pdf ability of medical students to calculate drug doses in children.