Nursing Metric Conversion

Correct Answer: B

Rationale: To convert millimeters to centimeters, we divide by 10 since there are 10 millimeters in a centimeter. So, 345,000 mm ÷ 10 = 34,500 cm. Therefore, the correct answer is B. Choice A is incorrect as it doesn't involve dividing by 10. Choice C is incorrect as it doesn't consider the conversion factor. Choice D is incorrect as it adds extra zeros, which is not necessary for this conversion.

Correct Answer: C

Rationale: To find the result of multiplying 0.15 by 3, we simply multiply the two numbers together. 0.15 * 3 = 0.45. This is because when you multiply a decimal by a whole number, you multiply the decimal part as usual and then place the decimal point in the product according to the total number of decimal places in the numbers being multiplied. In this case, 0.15 has two decimal places, and 3 is a whole number, so the product is 0.45. Choice A (0.05) is incorrect as it is the result of multiplying 0.15 by 0.33, not 3. Choice B (0.15) is incorrect as it is the original number being multiplied, not the result. Choice D (0.45) is incorrect as it is the same as the correct answer, but repeated in the choices, which usually does not happen in multiple-choice questions.

Correct Answer: A

Rationale: To convert 0.3 ml to tsp, we need to know that 1 ml is approximately 0.2 tsp. Therefore, 0.3 ml is 0.3 * 0.2 = 0.06 tsp. This is why choice A (0.06 tsp) is correct. Choices B, C, and D are incorrect because they do not follow the correct conversion ratio of 1 ml to 0.2 tsp. B is too high, C is double the correct answer, and D is the same as the original measurement in ml.

Correct Answer: A

Rationale: To convert liters to milliliters, you need to multiply by 1000 since 1 liter is equal to 1000 milliliters. Therefore, 0.5 liters x 1000 = 500 milliliters. So, the correct answer is A: 500 ml. Explanation of other choices: B: 50 ml - Incorrect, this would be the equivalent of 0.05 liters. C: 5 ml - Incorrect, this would be the equivalent of 0.005 liters. D: 0.5 ml - Incorrect, this is the same value as the given amount in liters, not the conversion to milliliters.

Correct Answer: C

Rationale: To convert kilograms to grams, you need to multiply by 1000 since there are 1000 grams in 1 kilogram. So, 5 kilograms x 1000 = 5000 grams, which makes choice C the correct answer. Choices A, B, and D are incorrect as they do not correctly apply the conversion factor of 1000.