ATI TEAS 7
Nursing Metric Conversions Questions
Question 1 of 5
Convert 3,450 grams to milligrams (mg).
Correct Answer: B
Rationale: To convert grams to milligrams, you need to multiply by 1,000 since 1 gram is equal to 1,000 milligrams. Therefore, to convert 3,450 grams to milligrams, you multiply 3,450 by 1,000, which equals 3,450,000 mg. The correct answer is B. Explanation for other choices: A: 34,500 mg - This is incorrect as it only multiplies by 10 (not 1,000). C: 3,450 mg - This is incorrect as it does not convert grams to milligrams. D: 3,450,000 mg - This is incorrect as it repeats the original value in milligrams.
Question 2 of 5
How many micrograms (mcg) are equivalent to 0.5 milligrams (mg)?
Correct Answer: A
Rationale: To convert milligrams (mg) to micrograms (mcg), you multiply by 1000 because 1 mg = 1000 mcg. So, to convert 0.5 mg to mcg, you multiply 0.5 by 1000, which equals 500 mcg. Therefore, the correct answer is A: 500 mcg. Choice B (50 mcg) is incorrect as it results from multiplying by 100 instead of 1000. Choice C (5 mcg) is incorrect as it results from multiplying by 10 instead of 1000. Choice D (0.5 mcg) is incorrect as it does not involve any conversion from milligrams to micrograms.
Question 3 of 5
Convert 0.2 liters to milliliters.
Correct Answer: B
Rationale: To convert liters to milliliters, you need to multiply by 1000 since 1 liter equals 1000 milliliters. So, 0.2 liters x 1000 = 200 milliliters, making choice B the correct answer. Choice A is incorrect as it represents 0.02 liters. Choice C is incorrect as it represents 0.002 liters. Choice D is incorrect as it represents 2 liters, not 0.2 liters.
Question 4 of 5
What is 0.025 mg converted to micrograms?
Correct Answer: A
Rationale: To convert mg to mcg, you multiply by 1000 since 1 mg = 1000 mcg. Therefore, 0.025 mg * 1000 = 25 mcg, which is choice A. Choice B is incorrect as it incorrectly multiplies by 10 instead of 1000. Choice C is incorrect as it incorrectly divides by 10. Choice D is incorrect as it incorrectly divides by 100 instead of multiplying by 1000.
Question 5 of 5
What is the base unit for mass in the metric system?
Correct Answer: B
Rationale: The correct answer is B: grams. Grams are the base unit for mass in the metric system. The metric system is based on powers of ten, making it easy to convert between units. Milligrams (A) are smaller units, kilograms (C) are larger units, and tons (D) are even larger units. Grams are the most commonly used unit for measuring everyday items and are the standard unit for mass in the metric system.
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