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By Pearl Shihab
Competency in Maths is key for secure nursing perform; this can be the single textual content to obviously clarify Maths particularly for college students in nursing and healthcare, expelling the tears and frustration that may be skilled when attempting to grapple with the topic. the writer has been educating anatomy, body structure and pharmacology to nursing scholars for 25 years, and is easily positioned to appreciate the fears that scholars have while addressing numbers and maths. this article is going to support scholars to deal with numbers with a bit of luck within the management of gear and different perform settings. scientific examples might be used to demonstrate using mathematics and the scholar could be in a position to paintings at their very own speed all through. as well as drug calculations, the textual content will permit scholars to believe convinced in different perform settings akin to: calculating the physique mass index (BMI) of a sufferer, studying and reading a blood end result again from the lab, reading demographic information, calculating the dietary consumption for a sufferer, and measuring a patient's blood strain, pulse, and temperature. "Shihab attracts on her 25 years of training adventure to supply a textual content dedicated particularly to competency within the often-dreaded region of maths for scholar nurses." - THES, Feb 2010
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Additional resources for Numeracy in nursing and healthcare : calculations and practice
Sample text
Multiply 100 * 100 = 102 * 102 10 000 = 104 As you can see, adding the indices gives you the answer very quickly. Similarly, you can divide numbers with exponents by subtracting the indices. Divide 26 , 23 2 * 2 * 2 * 2 * 2 * 2 = 64 , 2 * 2 * 2 = 8 64 , 8 = 8 If you subtract the indices 26 , 23 = 23 = 2 * 2 * 2 = 8 This is much easier than writing out the sum in full. It eliminates the danger of missing or adding a 2. You can only add and subtract indices if the big numbers are the same. There will be more about exponents in later chapters.
Gallery 1 is mainly geared towards maths and measurement used in healthcare. QXD 12/3/09 12:42 pm Page 31 Chapter 2 Decimals and other fractions How to deal with the bits and pieces When drugs come from the manufacturer they are in doses to suit most adult patients. However, many of your patients will be very young or very old and they need smaller doses. You may need to calculate the correct amount by taking part or a fraction of the standard dose, so you need to understand how to work out fractions.
Try these, using the BODMAS rules. (a) 3 * 6 + 7 = __________ (b) 32 , (18 - 10) = __________ (c) (5 + 4) * (7 - 2) = __________ (d) (5 + 4) * 7 - 2 = __________ (e) 82 - 6 * 6 = __________ (f) 15 + 3 * (4 - 2) = __________ Answers: (a) 25 (b) 4 (c) 45 (d) 61 (e) 28 (f) 21. QXD 12/3/09 12:40 pm Page 27 WHAT DID YOU LEARN? If you remembered the rule then these should have been no trouble! If not, here is how they are worked: (a) First multiply 3 * 6 = 18 then add 7 ϭ 25. (b) First subtract 10 from 18 ϭ 8 then divide 32 by 8 ϭ 4.