Nursing Metric Conversion - Nurselytic

Correct Answer: A

Rationale: The correct answer is A: 298.15 K. The conversion from Celsius to Kelvin is K = C + 273.15.
Therefore, 25°C is equivalent to 298.15 K, as 25 + 273.15 = 298.15.
Choice B, 273.15 K, is the freezing point of water in Kelvin, not the equivalent of 25°C.
Choice C, 250 K, and
Choice D, 25 K, are incorrect conversions and do not align with the correct formula for converting Celsius to Kelvin.

Correct Answer: C

Rationale:
To convert 0.02 to a ratio, you need to express it as a fraction. 0.02 is equivalent to 2/100. Simplifying this fraction gives you 1/50. So, the correct ratio for 0.02 is 1:50.
Choice A is correct because it accurately represents the ratio of 0.02.

Choices B, C, and D are incorrect: B is not the simplified form of 0.02, C simplifies to 1:50, not 2:40, and D is not the correct simplified ratio for 0.02.

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:
To convert milliliters to teaspoons, you can use the conversion factor that there are approximately 5 milliliters in a teaspoon. When you divide 0.3 ml by 5, you get 0.06 teaspoons, which is equivalent to 0.06 tsp.
Therefore, the correct answer is A.
Choice B, 0.1 tsp, is incorrect because it does not result from the conversion of 0.3 ml to tsp.
Choice C, 0.2 tsp, is also incorrect as it does not accurately represent the conversion.
Choice D, 0.3 tsp, is the same value as the original quantity in milliliters, which is not the correct conversion to teaspoons.

Correct Answer: A

Rationale: 0.5 liters is equivalent to 500 milliliters. The conversion from liters to milliliters involves multiplying by 1000 since there are 1000 milliliters in a liter.
Therefore, the correct answer is 500 ml.

Choices B, C, and D are incorrect because they do not correctly convert liters to milliliters. 50 ml is the conversion for 0.05 liters, 5 ml for 0.005 liters, and 0.5 ml for 0.0005 liters.