Metric Conversions for Nursing

Correct Answer: A

Rationale: To convert grams to kilograms, divide the number of grams by 1000. In this case, 100 grams divided by 1000 equals 0.1 kilograms (A). Choice B is incorrect because it represents the equivalent of 1000 grams, not 100 grams. Choice C is incorrect as it represents 10 times the amount of 100 grams. Choice D is incorrect as it represents one-hundredth of 100 grams, not the correct conversion.

Correct Answer: A

Rationale: To convert liters to milliliters, you need to multiply by 1000 since 1 liter is equal to 1000 milliliters. Therefore, 0.5 liters x 1000 = 500 ml. Choice A (500 ml) is correct. Choices B, C, and D are incorrect because they do not accurately convert liters to milliliters.

Correct Answer: B

Rationale: To divide 0.4 by 40, we can rewrite 0.4 as 4/10. Then, we divide 4 by 10 to get 0.1. So, 0.4 divided by 40 equals 0.1. Simplifying 0.1 as a fraction gives 1/10. To further simplify, we can divide both the numerator and denominator by 10 to get 1/1000, which is choice B. Choices A, C, and D are incorrect as they do not accurately represent the division of 0.4 by 40.

Correct Answer: A

Rationale: To convert 0.125 to a fraction, we observe that the decimal has 3 decimal places, so the denominator should be 1000. Thus, 0.125 as a fraction is 125/1000, which simplifies to 1/8 by dividing both numerator and denominator by 125. Therefore, the correct answer is A: 1/8. Option B: 1/4 is incorrect because 0.125 is smaller than 0.25. Option C: 1/2 is incorrect as 0.125 is smaller than 0.5. Option D: 1/16 is incorrect as it is too small to represent 0.125.

Correct Answer: A

Rationale: To convert 0.875 to a fraction, we first note that the decimal places indicate the denominator. Since there are three decimal places, the denominator is 10^3 = 1000. Then, 0.875 = 875/1000, which simplifies to 7/8 by dividing both the numerator and denominator by 125. Therefore, the correct answer is A (7/8). The other choices are incorrect because B (8/7) is the reciprocal of the correct answer, C (3/4) and D (9/10) do not equal 0.875.