ATI TEAS 7
Metric Conversions for Nursing Questions
Question 1 of 5
How many mcg are there in 0.2 mg?
Correct Answer: B
Rationale: To convert milligrams (mg) to micrograms (mcg), you need to multiply by 1000. Therefore, to find how many mcg are in 0.2 mg, you would multiply 0.2 by 1000, which equals 200 mcg. Choice B is correct. Choices A, C, and D are incorrect as they do not accurately convert 0.2 mg to mcg. Choice A is too low, choice C is too high, and choice D is too low.
Question 2 of 5
How many quarts are equivalent to 2 liters?
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.
Question 3 of 5
What is 0.5 liter in ounces?
Correct Answer: A
Rationale: To convert liters to ounces, we need to know that 1 liter is equal to 33.814 ounces. Therefore, 0.5 liter would be 0.5 * 33.814 = 16.907 ounces. Rounding to two decimal places, the correct answer is 16.91 oz (choice A). Choices B, C, and D are incorrect as they do not accurately represent the conversion of 0.5 liter to ounces.
Question 4 of 5
Convert 5 kilometers to meters.
Correct Answer: C
Rationale: To convert 5 kilometers to meters, you need to multiply by 1000 since 1 kilometer is equal to 1000 meters. Therefore, 5 kilometers x 1000 = 5000 meters. Choice C (5000 meters) is the correct answer. Choices A, B, and D are incorrect because they do not follow the correct conversion factor from kilometers to meters.
Question 5 of 5
Which basic SI conversion is incorrect?
Correct Answer: D
Rationale: The correct answer is D. In the metric system, 1 gram is equal to 1000 milligrams, not 100 milligrams. This is because the prefix "milli-" denotes a factor of 1/1000. Therefore, the conversion should be 1 g = 1000 mg. Choices A, B, and C are correct conversions as they follow the standard metric system prefixes: centi- (1/100), deci- (1/10), and kilo- (1000), respectively.
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