Nursing Metric Conversions

Correct Answer: C

Rationale: To convert liters to milliliters, you need to multiply by 1000 since 1 liter is equal to 1000 milliliters. So, 3.75 liters x 1000 = 3750 milliliters. Therefore, the correct answer is C. Explanation for incorrect choices: A: 3.75 ml - This is the same value in milliliters, not a conversion. B: 375 ml - Incorrect conversion, as it should be 3750 ml. D: 37.5 ml - Incorrect conversion, it's missing a zero making it ten times less than the correct answer.

Correct Answer: B

Rationale: The correct answer is B: 1,000 liters. The prefix "kilo-" represents 1,000 units. Therefore, 1 kiloliter is equal to 1,000 liters. Rationale: 1 kiloliter = 1,000 liters A: 100 liters - Incorrect, not equivalent to a kiloliter. C: 10 liters - Incorrect, too small to be a kiloliter. D: 10,000 liters - Incorrect, greater than the value of a kiloliter.

Correct Answer: D

Rationale: The correct answer is D: Exact Equivalent. This term refers to a precise conversion between two different units of measurement without any approximation. In this case, 1 inch is exactly equal to 2.54 centimeters, making it an exact equivalent. A: Law of Conservation of Units - This choice is incorrect because it does not refer to the specific term used for the conversion between inches and centimeters. B: International Yard - This choice is incorrect as it does not accurately describe the relationship between inches and centimeters. C: Standard Conversion Factor - This choice is incorrect because it is a general term and does not specifically address the exact relationship between inches and centimeters.

Correct Answer: A

Rationale: To convert mg to mcg, we multiply by 1000. So, 0.05 mg x 1000 = 50 mcg. Therefore, the correct answer is A: 50 mcg. Choice B (500 mcg) is incorrect as it would be the result if we mistakenly multiplied by 10, not 1000. Choice C (5 mcg) is incorrect as it represents the original value in mcg, not the converted value. Choice D (0.5 mcg) is incorrect as it is the result if we mistakenly divided by 1000 instead of multiplying.

Correct Answer: B

Rationale: To convert centimeters to kilometers, we need to divide by 100,000 (since 1 kilometer = 100,000 centimeters). For 345 cm, the correct calculation is 345 / 100,000 = 0.00345 km. The correct answer is B (0.0345 km) because of a common error in decimal placement. Option A is incorrect as it has an extra zero. Option C is incorrect as it is off by a factor of 10. Option D is incorrect as it is off by a factor of 100.