Nursing Metric Conversion - Nurselytic

Correct Answer: D

Rationale:
To convert pounds to kilograms, you need to divide the weight in pounds by 2.205 (1 kg = 2.205 lbs).
Therefore, 255.0 pounds divided by 2.205 equals 115.6 kilograms. This results in choice D being the correct answer.

Choices A, B, and C are incorrect as they do not reflect the accurate conversion calculation from pounds to kilograms.

Correct Answer: B

Rationale: The correct term for the amount of space an object occupies is 'volume.' Volume refers to the three-dimensional space that an object occupies and is measured in cubic units like cubic meters. 'Mass' (
Choice
A) refers to the amount of matter in an object, 'density' (
Choice
C) is the mass per unit volume of a substance, and 'area' (
Choice
D) is the measurement of the extent of a surface.

Correct Answer: A

Rationale: The question asks for the conversion of 0.5 liters to milliliters. The correct answer is 500 ml, which is derived from the standard conversion factor where 1 liter is equal to 1000 milliliters.
Choice B, 50 ml, is incorrect as it represents the conversion of 0.05 liters to milliliters.
Choice C, 5 ml, is incorrect as it corresponds to the conversion of 0.005 liters to milliliters.
Choice D, 0.5 ml, is incorrect as it is the same value given in the question but in milliliters.

Correct Answer: A

Rationale:
To convert milligrams to micrograms, you multiply by 1000, not 10000.
Therefore, 0.025 mg equals 25 mcg.
Choice B (250 mcg) is incorrect as it incorrectly multiplies by 10000.
Choice C (2.5 mcg) is incorrect as it incorrectly divides by 10.
Choice D (0.25 mcg) is incorrect as it incorrectly multiplies by 10.

Correct Answer: C

Rationale:
To convert milliliters to liters, you need to divide by 1,000 since there are 1,000 milliliters in a liter.
Therefore, 3,000 milliliters / 1,000 = 3 liters.
Choice A '0.3 liters' is incorrect as it represents 300 milliliters, not 3,000.
Choice B '30 liters' is incorrect as it is the result of multiplying by 10 instead of dividing by 1,000.
Choice D '0.03 liters' is incorrect as it represents 30 milliliters, not 3,000.