ATI TEAS 7
Metric Conversions for Nursing
1. What is the equivalent of 3.54 millimeters in meters (m)?
- A. 0.0354 m
- B. 0.00354 m
- C. 35.4 m
- D. 0.035 m
Correct answer: B
Rationale: To convert millimeters to meters, you need to divide by 1,000 since there are 1,000 millimeters in a meter. Therefore, 3.54 mm รท 1,000 = 0.00354 meters. Choice A (0.0354 m) is incorrect as it is 10 times the correct conversion. Choice C (35.4 m) is incorrect as it would be the equivalent of 35,400 millimeters. Choice D (0.035 m) is also incorrect as it is 100 times greater than the correct conversion.
2. What is 0.875 as a fraction?
- A. 7/8
- B. 9/10
- C. 5/6
- D. 3/4
Correct answer: A
Rationale: To convert 0.875 to a fraction, you can write it as 875/1000. Simplifying this fraction by dividing the numerator and denominator by their greatest common divisor, which is 125, gives you 7/8. Therefore, the correct answer is 7/8. Choice B (9/10), Choice C (5/6), and Choice D (3/4) are incorrect as they do not represent the fraction equivalent of 0.875.
3. Convert 0.75 kilograms to grams.
- A. 75 grams
- B. 750 grams
- C. 7,500 grams
- D. 75,000 grams
Correct answer: B
Rationale: To convert kilograms to grams, you need to multiply by 1000 since there are 1000 grams in a kilogram. Therefore, 0.75 kilograms is equal to 0.75 x 1000 = 750 grams. Choices A, C, and D are incorrect as they incorrectly place the decimal point and do not reflect the correct conversion from kilograms to grams.
4. How many milligrams are in 1 gram?
- A. 1 mg
- B. 10 mg
- C. 100 mg
- D. 1,000 mg
Correct answer: D
Rationale: The correct answer is D: 1,000 mg. This is because 1 gram is equivalent to 1,000 milligrams. To convert grams to milligrams, you multiply by 1,000. Choices A, B, and C are incorrect. Choice A (1 mg) is the smallest unit, and it would take 1,000 of these to make 1 gram. Choice B (10 mg) is also too small, as it would require 100 of these to equal 1 gram. Choice C (100 mg) is closer, but it still falls short of the correct conversion, which is 1,000 mg in 1 gram.
5. How many millimeters are in 0.75 centimeters?
- A. 7.5 mm
- B. 0.75 mm
- C. 75 mm
- D. 75 cm
Correct answer: C
Rationale: To convert centimeters to millimeters, you need to multiply by 10 since there are 10 millimeters in a centimeter. Therefore, 0.75 centimeters equals 0.75 x 10 = 7.5 millimeters, not 75 millimeters (Choice C). Choice A (7.5 mm) is the correct conversion, while Choice B (0.75 mm) and Choice D (75 cm) are incorrect conversions.
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