What is 0.07 expressed as a fraction?

Correct Answer: A

Rationale: In this nursing metric conversion question, the number 0.07 needs to be expressed as a fraction. The correct answer is A) 7/100. To understand why this is correct, we need to look at the decimal value 0.07. The number 0.07 can be written as 7/100 because the decimal point is after the tenths place, which is 7, and the denominator represents the place value of the last digit, which is 100 for hundredths. Option B) 1/10 is incorrect because 0.07 is not equal to 1/10. If we convert 1/10 to a decimal, it is 0.1, which is not the same as 0.07. Option C) 1/20 is incorrect because 0.07 is not equivalent to 1/20. 1/20 is equal to 0.05 as a decimal, not 0.07. Option D) 1/50 is incorrect because 0.07 is not equal to 1/50. If we convert 1/50 to a decimal, it is 0.02, which is not the same as 0.07. In a nursing context, understanding how to convert between decimals and fractions is crucial for accurate medication dosing, fluid calculations, and other clinical measurements. Nurses need to have a strong grasp of metric conversions to ensure patient safety and deliver effective care. This question reinforces the importance of precision and accuracy in nursing calculations.

Correct Answer: B

Rationale: To convert liters to milliliters, you need to multiply by 1000 as there are 1000 milliliters in 1 liter. Therefore, when converting 0.5 liters to milliliters, the correct answer is 0.5 x 1000 = 500 ml. Choice A (50 ml) is incorrect because it represents the conversion of 0.05 liters, not 0.5 liters. Choice C (5 ml) is incorrect as it represents the conversion of 0.005 liters. Choice D (0.5 ml) is incorrect as it does not reflect the correct conversion from liters to milliliters.

Correct Answer: C

Rationale: The correct answer is C: 0.45. To find the result of multiplying 0.15 by 3, you simply multiply the two numbers together, which gives you 0.45. Choice A (0.05) is incorrect as it is the result of dividing 0.15 by 3 instead of multiplying. Choice B (0.15) is the original number being multiplied and not the result. Choice D (0.45) is the same as the correct answer but is repeated for redundancy.

Correct Answer: C

Rationale: To convert milligrams to micrograms, you need to multiply by 1000 because there are 1000 micrograms in 1 milligram. Therefore, 0.175 mg x 1000 = 1750 mcg. The correct answer is 1750 mcg. Choices A, B, and D are incorrect because they do not account for the conversion factor of 1000 between milligrams and micrograms. It's crucial to understand these conversions in medical calculations to ensure accurate dosing and prevent medication errors.

Correct Answer: A

Rationale: The correct answer is A: TRUE. 0.25 mg is indeed equal to 250 mcg. This conversion is obtained by multiplying 0.25 mg by 1000 to convert it to micrograms. In pharmaceuticals, it is crucial to understand and convert between different dosage units accurately. Choice B is incorrect as the two quantities are equivalent. Choice C, 'Sometimes,' is misleading as the conversion from milligrams to micrograms follows a consistent ratio. Choice D, 'None of the above,' is incorrect as there is a definitive equivalence between the provided quantities.