Metric Conversions for Nursing

Questions 49

ATI TEAS 7

ATI TEAS 7 Test Bank

Metric Conversions for Nursing Questions

Question 1 of 5

How many micrograms are in 0.15 mg?

Correct Answer: A

Rationale: To convert milligrams to micrograms, you need to multiply by 1000. So, 0.15 mg x 1000 = 150 mcg. This is why choice A (150 mcg) is correct. Choice B (15 mcg) is incorrect as it doesn't account for the conversion factor. Choice C (1.5 mcg) is incorrect as it is off by a factor of 10. Choice D (1500 mcg) is incorrect as it overestimates the conversion.

Question 2 of 5

What does the prefix 'milli' mean?

Correct Answer: B

Rationale: The prefix 'milli' denotes 1/1000, which is equivalent to 0.001. This means that any unit following 'milli' is divided by 1000. Therefore, the correct answer is B, 0.001. Choice A (0.01) is incorrect as it represents the prefix 'centi,' which means 1/100. Choice C (0.0001) is incorrect as it represents the prefix 'micro,' which means 1/1,000,000. Choice D (0.00001) is incorrect as it represents the prefix 'nano,' which means 1/1,000,000,000.

Question 3 of 5

What is 0.075 mg in mcg?

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.

Question 4 of 5

What is the equivalent of 3.54 millimeters in meters (m)?

Correct Answer: B

Rationale: To convert millimeters to meters, we divide by 1000 since there are 1000 millimeters in a meter. Therefore, 3.54 mm in meters is 3.54/1000 = 0.00354 meters. Choice B is correct as it correctly converts 3.54 mm to meters. Choices A, C, and D are incorrect because they do not apply the correct conversion factor. Choice A incorrectly moves the decimal point two places to the left instead of three. Choice C incorrectly multiplies by 10 instead of dividing by 1000. Choice D incorrectly moves the decimal point one place to the left instead of three.

Question 5 of 5

Convert 1.25 kilograms to grams.

Correct Answer: C

Rationale: To convert kilograms to grams, you need to multiply by 1000 since there are 1000 grams in 1 kilogram. So, 1.25 kg x 1000 = 1250 grams, which is choice C. Choice A (12.5 grams) is incorrect as it is 10 times less than the correct answer. Choice B (125 grams) is incorrect as it is missing a zero. Choice D (1250 mg) is incorrect as it is in milligrams, not grams.

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