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: B

Rationale: The correct answer is B: 3,450 mm. To convert meters to millimeters, we know that 1 meter is equal to 1,000 millimeters. Therefore, to find how many millimeters are in 3.45 meters, we multiply 3.45 by 1,000, which equals 3,450 mm. Incorrect choices: A: 345 mm - Incorrect because it is the result of multiplying 3.45 by 100 (not 1,000). C: 345,000 mm - Incorrect as it is the result of incorrectly multiplying 3.45 by 100,000. D: 3.45 mm - Incorrect as it is the original amount in meters, not the converted amount in millimeters.

Correct Answer: A

Rationale: To convert milliliters to liters, you need to divide by 1000 since there are 1000 milliliters in 1 liter. So, 2500 milliliters ÷ 1000 = 2.5 liters (Option A). Option B (25 liters) is 10 times the correct answer. Option C (0.25 liters) is dividing by 10 instead of 1000. Option D (250 liters) is multiplying by 100 instead of dividing by 1000.

Correct Answer: A

Rationale: To convert grams to milligrams, you need to multiply by 1000 since 1 g = 1000 mg. Therefore, 0.04 g * 1000 = 40 mg. Thus, the correct answer is A: 40 mg. Choice B is incorrect as it is 10 times more than the correct answer. Choice C is incorrect as it is 10 times less than the correct answer. Choice D is incorrect as it is 100 times less than the correct answer.

Correct Answer: A

Rationale: The prefix 'Tera' corresponds to the value of 10^12. This can be understood by knowing that the International System of Units (SI) prefixes are based on powers of 10. 'Tera' comes after 'Giga' (10^9) and before 'Peta' (10^15). Therefore, the correct choice is A. Summary of other choices: B: Incorrect because 'Giga' represents 10^9. C: Incorrect as 'Peta' represents 10^15, a higher value. D: Incorrect because 'Mega' represents 10^6, a lower value than 'Tera'.