Metric Conversions for Nursing

Correct Answer: A

Rationale: The correct answer is A: 1.06 quarts. To convert liters to quarts, we use the conversion factor 1 liter = 1.05668821 quarts. Therefore, 2 liters would be approximately 2.11337642 quarts, which can be rounded to 1.06 quarts. The other choices are incorrect because B (0.5 quarts), C (2.1 quarts), and D (4 quarts) do not accurately represent the conversion of 2 liters to quarts based on the conversion factor.

Correct Answer: D

Rationale: To convert mg to mcg, you multiply by 1000. Therefore, 0.075 mg x 1000 = 75 mcg. Correct Answer: D. Option A is incorrect as it is the same unit, not converted. Option B is 10 times the correct answer. Option C is 100 times the correct answer.

Correct Answer: B

Rationale: To convert centimeters to millimeters, we multiply by 10 since there are 10 millimeters in 1 centimeter. Therefore, 5 cm x 10 = 50 mm. Thus, the correct answer is A. Option B (500 mm) is incorrect as it is the result of multiplying 5 cm by 100 instead of 10. Option C (5 mm) is incorrect as it represents the original value in centimeters, not the converted value in millimeters. Option D (500 cm) is incorrect as it is the original value in centimeters, not the converted value in millimeters.

Correct Answer: B

Rationale: The correct answer is B: 4 quarts. There are 4 quarts in 1 gallon because a quart is a unit of volume equal to a quarter of a gallon. Therefore, when you multiply 1 gallon by 4 quarts per gallon, you get 4 quarts. Choice A (2 quarts) is incorrect because 2 quarts is only half of a gallon. Choice C (3 quarts) is incorrect because 3 quarts is three-quarters of a gallon. Choice D (1 quart) is incorrect because 1 quart is only a quarter of a gallon.

Correct Answer: B

Rationale: The correct answer is B: 200 ml. To convert liters to milliliters, you need to multiply by 1000 since 1 liter equals 1000 milliliters. Therefore, 0.2 liters x 1000 = 200 ml. A) 20 ml is incorrect as it is the result of incorrectly converting 0.02 liters. C) 2 ml is incorrect as it is the result of incorrectly converting 0.002 liters. D) 2000 ml is incorrect as it is the result of incorrectly converting 2 liters.