Nursing Metric Conversions

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.

Correct Answer: A

Rationale: To convert 0.03 to a fraction, we can write it as 3/100 since 0.03 can be expressed as 3 hundredths. Therefore, the correct answer is A: 3/100. Option B (1/30) is incorrect because it represents 0.033, not 0.03. Option C (1/3) is incorrect as it represents 0.3, not 0.03. Option D (1/10) is incorrect as it represents 0.1, not 0.03.

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.

Correct Answer: B

Rationale: The number 0.2 rounded to the nearest tenth means rounding to one decimal place. Since the digit after the tenths place is 0, we keep the tenths place as it is. Therefore, the correct answer is B: 0.2. A: 0.1 - Incorrect, this is rounding down to the nearest tenth. C: 0.3 - Incorrect, this is rounding up to the nearest tenth. D: 0.25 - Incorrect, this is rounding to the nearest hundredth, not tenth.

Correct Answer: B

Rationale: To convert liters to milliliters, you need to multiply by 1000 because there are 1000 milliliters in 1 liter. So, 3,540 liters x 1000 = 3,540,000 mL. Therefore, choice B (3,540,000 mL) is the correct answer. Choice A (354,000 mL) is incorrect because it doesn't account for the conversion factor. Choice C (35,400 mL) and choice D (35,400,000 mL) are also incorrect as they do not correctly apply the conversion factor.