Free Pdf Daviss Basic Math Review for Nurses With Step-by-step Solutions
When it comes to doing nursing math, which is substantially figuring out dosage amounts, the absolute best, easiest and most foolproof manner to practise it is by using dimensional analysis. Yous may call up it from your chemistry class and loved it fifty-fifty then ;-). In this mail service I volition show you how to apply dimensional assay to solve any dosage adding, even the tricky weight-based ones.
Level i Dimensional Analysis
We'll get-go at level i….super piece of cake ones to requite you a feel for the technique. Ready? Your order reads:
In dimensional analysis, you lot always commencement with what's ordered. In this case it'south 650 mg of acetaminophen. You will write this every bit a fraction, with 650 on summit and i on the lesser like then:
Side by side, you need to know what dosage amounts your medication comes in. This is known as the conversion gene. In the case of good ol' Tylenol, we check our blister pack and see that it'southward 325 mg per tablet. The next step is to add together the conversion factor also as a fraction. Since mg is at the top of our beginning fraction, it volition go on the bottom of our next 1 then that they abolish each other out. Like then:
Equally we move forwards into more complicated calculations, it will become more than evident that you know when to stop conversions when you are left only with the information needed to give the dose. In this example, nosotros want to know how many tablets to requite the patient. Everything except for tablets is crossed out, and so we know we are gear up to exercise some math.
1) Multiply across the top: 650 x i
ii) Then split across the lesser: ÷ 325.
What answer did you get?
Let's do 1 more easy one…
For this adding, permit'south assume midazolam comes in 5 mg tablets. I have no idea if it does, but we're merely practicing so it'south all good. Hopefully, you lot've fix upward your adding similar this:
Adjacent, cross out the units that are the aforementioned…in this case it'southward mg.
We are now left with X # of tablets to give our one patient. Voila! Now, exercise your calculation!
OK…you accept the hang of that now? That's a simple calculation with 1 conversion. What if you accept multiple conversions, medications dosed by weight or fifty-fifty medications dosed by weight AND time? My grade Confident Calculations teaches yous how to perform all types of medication math with 100% accuracy. Every. Unmarried. Fourth dimension.
Nosotros beginning at the very beginning with the basics and so build your skills and conviction until you are able to easily main even the most challenging calculations. I also teach yous a method that gets you lot thinking critically most dosage calculations questions…they're not only math bug. They are concept bug that often require disquisitional thinking (not just multiplying and dividing!).
How exercise you know if Confident Calculations tin help? Give this calculation a try:
Tania is receiving a loading dose of phenytoin Four for condition epilepticus. To avoid cardiac complications, this powerful medication must exist administered slowly at a rate non to exceed 50mg per minute. The medication comes pre-mixed from the pharmacy at a concentration of 5mg/ml. If Tania is to receive a total dose of 700 mg, what is the minimum corporeality of fourth dimension y'all should take to infuse this medication?
How'd yous do? If you got stuck, had trouble figuring out where to start, weren't certain what the question was asking or couldn't go your conversions to abolish out…and then yous will LOVE the confidence and skills you'll become from Confident Calculations. I hope to see you there!
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Source: https://straightanursingstudent.com/dosage-calculations-the-easy-way/
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