ATI TEAS 7
Metric Conversions for Nursing
1. How many ounces is equal to 1 gram?
- A. 0.015 ounces
- B. 0.035 ounces
- C. 0.045 ounces
- D. 0.055 ounces
Correct answer: B
Rationale: To convert grams to ounces, you need to multiply the weight in grams by 0.035 to get the equivalent weight in ounces. Therefore, 1 gram is equal to 0.035 ounces. Choices A, C, and D are incorrect conversions and do not accurately represent the conversion factor from grams to ounces.
2. What does 'mg' stand for in the metric system?
- A. microgram
- B. milligram
- C. gigabyte
- D. megagram
Correct answer: B
Rationale: 'mg' stands for milligram, which is equal to 1/1,000th of a gram. In the metric system, 'microgram' (choice A) is represented by 'mcg', 'gigabyte' (choice C) is a unit of digital information storage, and 'megagram' (choice D) is equivalent to a metric ton.
3. Where was the metric system developed?
- A. Germany
- B. France
- C. Italy
- D. Spain
Correct answer: B
Rationale: The metric system was developed in France during the 1790s as a standardized system of measurement. This choice is correct because the metric system originated in France. Germany, Italy, and Spain did not play a role in the development of the metric system, making choices A, C, and D incorrect.
4. What is 0.45 liters in milliliters?
- A. 450 ml
- B. 45 ml
- C. 4.5 ml
- D. 0.45 ml
Correct answer: A
Rationale: To convert liters to milliliters, you need to multiply by 1000 since 1 liter equals 1000 milliliters. Therefore, 0.45 liters is equivalent to 450 milliliters. Choice B, 45 ml, is incorrect as it represents the conversion of 0.045 liters to milliliters. Choice C, 4.5 ml, is incorrect as it represents the conversion of 0.0045 liters to milliliters. Choice D, 0.45 ml, is incorrect as it is the initial quantity in milliliters and not the result of the conversion.
5. What does 'm' stand for in the metric system?
- A. meter
- B. mole
- C. milli
- D. micro
Correct answer: A
Rationale: The correct answer is 'meter.' In the metric system, 'm' stands for meter, which is the base unit for length. Choice B, 'mole,' is a unit used in chemistry to represent an amount of substance. Choice C, 'milli,' represents a prefix indicating one-thousandth, and choice D, 'micro,' represents a prefix indicating one-millionth. Therefore, the correct choice is 'A: meter.'
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