How many liters are in 3,000 milliliters?

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.

Correct Answer: B

Rationale: In nursing, understanding metric conversions is crucial for accurate medication dosing, fluid calculations, and other clinical tasks. In this question, the correct answer is B) 1.5 kg. To convert grams to kilograms, you need to divide by 1000 since there are 1000 grams in 1 kilogram. Explanation of options: A) 0.15 kg - This is incorrect because dividing 1500 grams by 1000 equals 1.5 kg, not 0.15 kg. C) 15 kg - This answer is incorrect as it is 10 times the correct answer, resulting from multiplying instead of dividing by 1000. D) 150 kg - This option is incorrect as it is 100 times the correct answer, indicating a miscalculation in conversion. Educational context: Understanding metric conversions is a fundamental nursing skill to ensure patient safety and precision in healthcare delivery. Nurses need to accurately convert between units to administer medications, calculate IV fluid rates, and interpret lab values. This question reinforces the importance of mastering basic math skills in the context of nursing practice.

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: A

Rationale: The prefix 'kilo-' in the metric system signifies a factor of 1000, which is equivalent to 10^3. Therefore, when using the prefix 'kilo-', it implies multiplying the base unit by 1000. For instance, one kilometer is equal to 1000 meters. Choices B, C, and D are incorrect as they do not accurately represent the factor associated with the prefix 'kilo-'.

Correct Answer: C

Rationale: The correct answer is C: '1 liter = 1.057 quarts.' This conversion is accurate as it reflects the precise relationship between liters and quarts, where 1 liter is slightly more than a quart. Choice A is incorrect because 1 inch is approximately equal to 2.54 cm, not 2.5 cm. Choice B is incorrect as 1 meter is equivalent to approximately 39.37 inches, not exactly. Choice D is also inaccurate as 1 gram is equal to 1000 milligrams, not 100 milligrams.