ATI TEAS MATH UNDERSTANDING MEASUREMENTS AND CONVERSIONS AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING MEASUREMENT AND CONVERSION QUESTIONS Measurement and conversion questions are vitally important in any healthcare program, especially in nursing. You will be required to understand how to process these conversions to provide safe and efficient patient care through medication administration or other tasks. Measurement and conversion questions ask applicants to coNvert units of measurements between the metric system and English system.
AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING ENGLISH SYSTEM CONVERSIONS The English system of measurement uses weight, volume, and length as units of measure. • Weight is measured in ounces, pounds, and tons • Volume is measured in ounces, cups, pints, quarts, and gallons • Length is measured in inches, feet, yards, and miles To understand conversions in the English system, you must know the equivalent measures for each step in the given measurement system. AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING ENGLISH SYSTEM CONVERSIONS Here are some examples of measurement Measurement Type Equivalents equivalents Weight 16 ounces = 1 pound 2,000 pounds = 1 ton Volume 8 ounces = 1 cup 2 cups = 1 pint 2 pints = 1 quart 4 quarts = 1 gallon Length 12 inches = 1 foot 3 feet = 1 yard 5,280 feet = 1 mile
AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING Metric SYSTEM CONVERSIONS The metric system of measurement use weight, volume, and length, but it uses a different set of units for measurement. • The basic unit of weight measurement is the gram • The basic unit of volume measurement is the liter • The basic unit of length measurement is the meter In the metric system, each unit of measurement starts with a prefix that indicates whether the measurement is smaller than the basic unit or larger than the basic unit. AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING Metric SYSTEM CONVERSIONS Here are some examples of measurement Prefix Measurement Weight Volume Length Compared to equivalents Basic Unit Kilo- 1,000 times Kilogram (kg) Kiloliter (kL) Kilometer (km) Hecto- 100 times Hectogram Hectoliter Hectometer (hg) (hL) (hm) Deka- 10 times Dekagram Dekaliter Dekameter (dag) (daL) (dam) Basic Basic Unit Gram (g) Liter (L) Meter (m) Unit Deci- 1/10 Decigram Deciliter (dL) Decimeter (dg) (dm) Centi- 1/100 Centigram Centiliter (cL) Centimeter (cg) (cm) Milli- 1/1,000 Milligram Milliliter Millimeter (mg) (mL) (mm)
ATI TEAS MAT AT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING CONVERSIONS between systems To convert between measurements in either English and metric systems, you need to know the approximate equivalents between Metric Measurement different units. Here are some examples of English Equivalent measurement equivalents. 1 kilogram Approximately 2.2 pounds 1 liter Approximately 1 quart 2.5 centimeters Approximately 1 inch 1 meter Approximately 1 yard ATI TEAS MAT AT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING temperature conversions In the English system of measurement, temperature is measured on the Fahrenheit scale. In the metric system of measurement, temperature is measured on the Celsius scale. Here are some examples of measurement Celsius (Metric) Fahrenheit equivalents. (English) Freezing Point 0 32 Body Temperature 37 98.6 Boiling Point 100 212
AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING temperature conversions Celsius (Metric) Fahrenheit (English) Freezing Point 0 32 Body Temperature 37 98.6 Boiling Point 100 212 To obtain an approximation of Celsius Temperature from a Fahrenheit Measurement, subtract 30 and then divide the total by 2. For an exact conversion, the formula is ! = # − 32 ' 5 9 AT ATI TEAS MAT ATH ME MEASUREME MENTS AND CO CONVERSIONS UNDERSTANDING measurement tools Measurement tools are tested on the ATI TEAS using three categories, based on weight , volume , or length . • Measurement tools for weight • MEASUREMENT TOOLS FOR LENGTH • Scales are used traditionally and vary in degrees of accuracy • CALIPERS ARE THE MOST PRECISE MEASURING TOOL AND TAKE MEASUREMENTS USING TWO POINTS • Measurement tools for volume • Pipettes are measuring tubes or drops to measure small • RULERS ARE THE NEXT MOST PRECISE TOOL, FOLLOWED amounts of liquid with high precision BY YARDSTICKS AND METERSTICKS • Measuring cups , flasks , and beakers provide less precise • TAPE MEASURES ARE USED FOR MEASURING LONG measurements for larger amounts of liquid DISTANCES • Graduated cylinders vary in size and are less precise than pipettes but more precise than measuring cups, flasks, • ODOMETERS MEASURE THE DISTANCE TRAVELED BY A and beakers VEHICLE AND WOULD BE APPROPRIATE FOR THE MEASUREMENT TAKEN IN MILES OR KILOMETERS
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