Lecture notes weng cho chew1 october 5, 2012 1the author is with u of illinois, urbanachampaign. This video shows how to setup and work iv drip rate calculations with gttmin factors. From nursing calculations and iv therapy for dummies uk, uk edition. Sep 28, 2015 dosage calculations made incredibly easy for nursing students. This course covers basic principles of administration of iv fluids and calculation of iv drip rates. Your patient is to receive nitroglycerine at 12mcgmin. No matter what initials you have after your name rn, cna, pa, and so on, you can bet youll see math on a daily basis if youre going into or are already in a career in the medical field. Preparing for the drug dosage calculation competency exam bsn completion applicants the drug dosage calculation competency exam is required for all bsn completion applicants. Calculate correct dosages with safety and confidence, with the easy tofollow nursing expertise of dosage calculations made incredibly easy. Many nurses are weak with drug calculations of all sorts. At times, you receive iv orders with the rate of milliliters per hour mlhr instead of the total infusion time. Intravenous infusion devices or pumps are set to deliver so many drops per milliliter. Determine what information you will need to solve for, in addition to any given information, to properly calculate dosages. Aanac does not accept any responsibility or liability for the accuracy, content, and completeness of the information.
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. All these are important questions to ask yourself in order to be certain you have made a. Cell buffering that acts within minutes to hours 2. Medical dosage calculations for dummies cheat sheet. See more ideas about nursing calculations, nursing math and nursing school tips. The pharmacy technician must have a full working knowledge of how to perform these calculations.
This method is based on cancelling out the units of measure or labels. Drug calculation made easy for nurses nursing manthra. Anaphylaxis, as presented in the following case, is a lifethreatening condition that is easily treated. You can use this rate to calculate the iv flow rate. Your patient patient has a dobutamine iv drip running. Feb 19, 20 calculating intravenous drug infusion made easy. Volumetime iv drop rate questions given a certain amount of liquid, a time period, and a drop factor gttsml, what is the necessary iv flow rate in gttsmin. When calculating how much of a drug is required, working with the formula. The infusion set is adjusted for a drop factor of 15 gttsml. Topics include peripheral, central venous, pediatric, geriatric iv therapy, iv medications, transfusions, parenteral. The drop factor is indicated on the iv tubing package and varies from one company to another. Calculate the iv flow rate if 1500 ml iv saline is ordered to be infused over 12 hours. Continuous iv infusions are delivered via infusion pumps.
In current nursing practice, the need to calculate drug dosages is not uncommon. Using formulas, converting time measurements, applying medical terms to math problems, rounding decimals objective. Drug calculations appear to be impossibly difficult, unless you break them down into small steps. Dosage calculations dosage calculations include calculating the number of doses, dispensing quantities, and ingredient quantities. If 1 tablet contains 500mg, how many milligrams are in 3 tablets. Drops per minute are adjusted on the intravenous pump and should never be confused with drops per ml. You are responsible for providing the proper dose of etomidate to your partner so that he can initiate the rsi procedure for your patient. Helping nursing students prepare for medication exams by explaining dosage calculations. Identify advantages and disadvantages of the different calculation methods. The topic can be very overwhelming, thats for sure. Dosage calculations made incredibly easy incredibly easy. However, if there is a power outage, nurses need to know how to deliver fluids without the use of an infusion pump. This requires calculating the number of drops per minute, as administered through basic iv tubing.
Iv solution cheat sheet a quick reference guide on the different intravenous solutions. Mathematical calculations will be demonstrated and opportunities for selfassessment are included. Im in nursing school and this was the book our instructors used to teach our iv therapy course. Intravenous solutions are used in fluid replacement therapy by changing the composition of the serum by adding fluids and electrolytes listed below is a table which may serve as your quick reference guide on the different intravenous solutions.
The nurses task will be to find out the amount of drug in each tablet and then to. Ibuprofen is 500 mg in 1 cc, how much will you administer. If you halve the top number and then halve the bottom number as well you can get to the answer quite quickly without the need for school type division. The exam is administered by uvicell between october 15th and november 15th. Med math, dosage calculations, and dimensional analysis explained the easy way.
Dosage calculations on a drug round, you may be given the total dose a patient is to receive. Nursing calculations help sheets final home unihub. I hope this video helped you out in getting comfortable with iv calculations and if youre still having trouble, dont worry. Calculations used when compounding medications pharmacists and pharmacy technicians all compound medications in one way or another, at least at some point in their careers, and you will try your hand at it soon, if you have not already. I had experience with iv therapy in the past as an lpn. 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.
Nursing calculations part i is to provide information about basic. Spitler, msed, rn, nremtp ems educator charlotte, north carolina introduction medication calculations can cause frustration for ems providers. The nurses quick guide to iv drug calculations semantic scholar. Assuring that every patient is provided with the appropriate medication and dose is fundamental in safeguarding their welfare. The same formula can be used for dosage calculations where the medication is. Remember that a formula often used to work out the number of drops per minute delivered by an intravenous infusion is.
The project gutenberg ebook of calculus made easy, by silvanus thompson this ebook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. Calculation of iv drip rate using an electronic pump. The iv bag has 500 mg of dobutamine in 250 ml of fluid. Pdf drug calculations for nurses a step by step approach, 3rd. Medication calculation examination study guide department of. Students will be able to use a formula to calculate iv flow rates and perform time and rate calculations for iv medical orders. Medication math can be made simple by mastering only a few basic formulas. Iv and drug calculations for busy paramedics by kent r. Set up a series of ratios and proportions to solve a single dosage calculation. Learning to master the metric system and related calculations may seem basic, but much of what we learned about the principles of calculations may have been forgotten. This is all new and will take a little time to get the hang. A nurses ultimate guide to accurate drug dosage calculations. Dosage calculations made incredibly easy for nursing students. Intravenous iv fluids and solutions quick reference.
This fully illustrated guide offers the complete howto on calculating dosages for all drug forms and administration routes, with numerous practice exercises and seasoned guidance on interpreting drug orders accurately. Each worksheet is in pdf format and has a link to each video in each worksheet. Calculate dosages the easy way this article introduces the da method of performing dosage calculations to practicing nurses. Second semester starting on monday, and these calculations will be our first test, i would like to find an easier way to remember them. Intravenous administration of medication provides rapid access to a patient. Renal compensation that is not complete for 35 days in acute. Preparing for the drug dosage calculation competency exam. The flow rate depends on the volume of fluid ordered and the time of infusion. It is a resourceful practice guide for preparation of the naplex, fpgee, ptcb and california pharmacy board exams.
However, in pn school, they gave us a huge binder of information about iv therapy and it made no sense to me at all. It is easy to calculate the running rate of iv fluids in terms of ml per hour or ml per minute. Reference guide for pharmaceutical calculations krisman. Iv infusion calculations involve several different sets of information. Math practice for paramedic students you are responsible. If 1 tablet contains 500mg, how many milligrams are in. 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. Dosage calculations after completing this chapter, you should be able to.
Understand class materials more fully, get ready for the nclex or certification exam, or refresh your calculation skills with this enjoyable, colorful text. The purpose of this chapter is to take away the mystery of medication math and replace it with con. Intravenous iv fluids and solutions quick reference guide. Pdf drug calculations for nurses a step by step approach. Dosage calculations for nursing students on iv drip. Micro drop factor drop size is normally 60 drops in 1 ml. These calculations have to be performed competently and accurately, so as not. Does anyone out there have any ideas on how to remember the iv rate formulas. Basic conversions video worksheet video 1 iv bolus video worksheet video 2 oral medication video worksheet video 3 drip factor worksheet video 4 iv infusion rate worksheet video 5. You may copy it, give it away or reuse it under the terms of the project gutenberg license included with this ebook or online at. Dosage calculations packet lincoln memorial university. Intravenous calculations are set to drops per milliliter, or gttml. Respiratory acidosis compensation occurs in 2 steps 1.
In this lesson, well be discussing the essential relevance of accurate dosage calculation, mostly focusing on intravenous drip factor or the drip rates. Example 6 31 year old aam took too many pills for suicide attempt na 9, k 5. Drug calculations for nurses made easy nursing times. This article will provide a simple and concise method for accurate computation using basic calculations see quick reference. Easy ways to deal with difficult number calculations halving fractions this is really useful if you have large, even numbers. The most common compounding you are likely to do is preparation of intravenous iv solutions. The rule for maximum dosage volume to be administered per intramuscular injection. Adjusting iv flow rate nurse may not arbitrarily speed up or slow down flow rate to catch up iv check for institutional policy regarding correcting offschedule iv rates and percentage of variation allowed should not exceed 25 percent. In summary, the electronic pump infusion rate must be set at 83 mlhour. Type use special considerations normal saline ns 0. Administer lactated ringers solution iv at 75 mlhour. Remember to round the final answer to the nearest whole number. Math and pharmacology can make it difficult to succeed on course exams, in the clinical setting, and in the field. Fortunately, calculating any one of these three variables is easy to do when you know the other two variables.
Aanac has made every attempt to ensure the accuracy and reliability of the information provided. This site is free and has a mixture of numeracy and nursing calculation. The formula to calculate drip rates in drops per minute dpm drip rate dpm volume of iv fluid. The drop factor is the number of drops per ml and depends on the size of the opening in the drip chamber. Drug calculations for nurses a step by step approach, 3rd edition robert lapham heather agar. Convert correctly between selected units of measure. Jan 08, 2008 does anyone out there have any ideas on how to remember the iv rate formulas. Calculate correct dosages with safety and confidence, with the easytofollow nursing expertise of dosage calculations made incredibly easy. Calculation of flow rate for an infusion pump infusion pumps do not have a calibrated drop factor. This article will now look at some commonly used drug calculations and the way that mistakes can happen.
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