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The metric system has become the system of choice for medications and measurements used in the health care setting. The base unit is at the center of your diagram.

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Deci

When prefixes are used in combination with the basic unit, the first letter of the prefix and the first letter of the unit of measure are written together in lowercase letters. Consumer Education. Thank you. The metric system is based on the decimal system, in which divisions and multiples of 10 are used. For example, there are 12 inches in a foot. deciliter—the word liter indicates that you are measuring volume (deci indicates 0.1 of that volume [liter], or 100 milliliters). This article has 27 testimonials from our readers, earning it our reader-approved status. ".

1 inch is 2.54 centimeters; but you can just multiple 1 inch by 2.5 with a tiny error rate. For example, suppose you have a cookie jar that is 40 centimeters tall. :)", "Helped me study for my biology test on the metric system. Metric System However, I found, "The mnemonics are very clever and extremely helpful! *Prefixes used most often in medication administration. one hundred times In the late 1700s, the metric system was created to standardize measurements across Europe.

In obstetrics we express fundal height (upper portion of the uterus) in centimeters. Let’s look at the following example to see how the prefixes may be used. To convert 2,000 milliliters to liters, divide 2,000 by 10 three times, since. Although a few medications are still prescribed in apothecary and household terms, the nurse will find that the majority of medication calculation and administration skills involve familiarity and accuracy with the metric system to administer medications safely. Milligram—abbreviated as mg. Did great!

See Box 6-1 for common metric abbreviations. If alternate measurements are included in a recipe, you may want to strike them out with a black pen or marker so you won't be tempted to look at them. Note that when L (liter) is used in combination with a prefix, it remains capitalized. Express parts of a unit or fractions of a unit as decimals. wikiHow marks an article as reader-approved once it receives enough positive feedback. Although children are taught the metric system in school (and have been for over 30 years), at home they see and hear parents, grandparents, brothers and sisters using only imperial measurements in everyday situations. Thanks. A very good reason for the UK to complete its changeover to go metric is to align itself with the rest of the world. Regardless of the size of the unit, the name of the basic unit is incorporated into the measure. Meter, which is used for linear (length) measurement, is not used in the calculation of dosages. ", "I needed a step-by-step, this is perfect for that! The speed is measured in kilometers per hour, as opposed to miles per hour.

In computer memory, the "byte" is the basic unit. Convert measures within the metric system b) Liter—the basic unit for volume (liquid) Three basic units of measure are used: a) Gram—the basic unit for weight (solid), b) Liter—the basic unit for volume (liquid). The other common prefixes used in medication administration are smaller units: centi, milli, and micro.

The prefixes in bold in Table 6-1 are the ones used most often in health care for dosage calculations. (There are 100 cents in a dollar if that helps.)

Kilo is 1000 times larger than the base unit, hecta is 100 times larger, and deka is 10 times larger than the base unit. Example: Similarly, deci is 1/10th of the base, centi is 1/100th, and milli is 1/1000th the size of the base unit. You may see gram abbreviated as Gm or gm, liter as lowercase l, or milliliter as ml. actually used it that I had forgotten it all! This took me step by step back through it, and was easier to remember this way! Example 2: 3. deciliter—the word liter indicates that you are measuring volume (deci indicates 0.1 of that volume [liter], or 100 milliliters). Confusion of the symbol used for microgram with the abbreviation for milligram could cause a critical error in dosage calculation. The benefit of the metric system lies in its simplicity and accuracy because it is based on the decimal system, unlike the apothecary system, which is based on fractions and could result in multiple errors. c) Meter—the basic unit for length cubic millimeter (mm3)—cubic millimeter is a unit of volume of three-dimensional space (length × width × height). Beginning in 1970, textbooks were changed to metric. X After reviewing this chapter, you should be able to: 1. Example 1: The prefixes in bold in Table 6-1 are the ones used most often in health care for dosage calculations. In a normal individual the white blood cell count ranges between 5,000 and 10,000 cells per cubic millimeter of blood. Include your email address to get a message when this question is answered. Milliliter—abbreviated as mL. For example, suppose you are making a list of restaurants within 1 kilometer of your house. one thousand times It can be mistaken for “mg” when handwritten and result in an error when orders are transcribed. Therefore: 100x100. Additional Conversions Useful in the Health Care Setting, Pediatric and Adult Dosage Calculation Based on Weight, Dosage Calculation Using the Dimensional Analysis Method. Best Practice 3: Measure and express patient weights in metric units only. Draw seven rungs of the ladder, and place each of the prefixes above one rung. 0.4 g, 0.5 L(not 25 g, 12 L) 1,000 You can draw this vertically or horizontally, whichever works best for you. Only gold members can continue reading.

Think you don’t understand metric? ", tutorials I take are produced by people who only know the metric system. The International Metric System was developed and

The main hope is that as the percentage of metric educated people increases, this will change. The apothecary system is being phased out and gradually being replaced by the metric system. ", "The pic helped me understand because it broke it down and now i get it. No other system equals it in simplicity. It can be mistaken for “mg” when handwritten and result in an error when orders are transcribed. For example, soft drinks come in bottles labeled in liters; engine sizes are also expressed in liters. Milliliter—abbreviated as mL.

The rationale: Significant medication errors have occurred when the patients’ weight is documented in non-metric units of measure (e.g., pounds) and it has been confused with kilograms (or grams). Overall, the position is that metric units tend to be used in ‘official’ communications, whereas everyday speech tends to use imperial units. BOX 6-1   Common Metric Abbreviations Therefore 1 mm3 of blood contains between 5,000 and 10,000 white blood cells (5,000/mm3 and 10,000/mm3). Ask most people why they don’t use metric measurements and the usual response will be, “I don’t understand metric”, “it’s too complicated” or “I’m too old to start using it”.
100 meter = 1 kilometer SI is the abbreviation taken from the French Système International d’Unit’s.

", unlock my conversion difficulties. References Certain fields, such as science and medicine, also use the metric system exclusively. Two of its best practices mention sole use of metric system units. Use Arabic numbers to express quantities in this system. ", "It broke everything about the metric down where I could understand it well.

"Going into nursing school, I needed to know the metric system (of course), but it has been so long since I've, "I order lots of jewelry supplies from all over the world. All tip submissions are carefully reviewed before being published, This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. 1. Tags: Calculate with Confidence At a quick glance these abbreviations appear similar; however, confusing these two units can result in lethal consequences for a client. You know how much a gallon is because you've seen gallon jugs of milk all your life. 67 milligrams % of people told us that this article helped them. If you learn a second language, you can learn by translating words and phrases from the second language into your first language, but to really understand the second language you have to learn to think in that language also. a) Gram—the basic unit for weight (solid) 1 kilometer = 100,000 centimeters.

6. Whether you want to travel internationally, start a career in science, or just connect more with the rest of the world, one of the first steps you can take is to understand the metric system. ", "Explanations were simple and to the point. For example, suppose you have a measurement of 6500[.]

1. For example, try "My Large Giraffe" to remember that the base units for measuring length, volume, and mass are the meter, liter, and gram. Kilo-, hecta-, deka-, and deci- all describe units larger than the base unit. Milligram is a unit of weight; milliliter is a unit of volume; and millimeter is a unit of length. Memorization of these prefixes is necessary for quick and accurate calculations. Let’s look at the following example to see how the prefixes may be used. Prefixes used most often in medication administration. More and more in everyday situations, we are encountering the use of metric measures. The first letter of each word corresponds to the first letter of the prefix, with. 2 Conversion of Metric Units 3 The Metric System. The basic prefixes you'll encounter most often are kilo-, hecta-, deka-, deci-, centi-, and milli-.

*Seen in the expression of laboratory values (e.g., hemoglobin, creatinine levels). There are 1,000 microliters in one milliliter. Level 2 Use, convert and calculate using metric and, where appropriate, Imperial measures. 0.1

How do I do centimeter to meter conversion? Use Arabic numbers to express quantities in this system. CHAPTER 6 State common equivalents in the metric system milliliter = mL

Linear measurements (meter, centimeter) are commonly used to measure the height of an individual and to determine growth patterns, for serial abdominal girth (the circumference of the abdomen, usually measured at the umbilicus), and for pressure ulcer measurement. ", "This article really helped me study for my test and made it easier. meters, and you want to convert it into kilometers. BOX 6-2   Metric System Rules 1. kilogram—the word gram indicates you are measuring weight (kilo indicates 1,000 of that weight; 1 kilogram = 1,000 grams).


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