What is the equivalent of 255.0 pounds in kilograms (1 kg = 2.205 lbs)?

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: A

Rationale: In the metric system, 'L' stands for liter. A liter is a unit of volume used to measure liquids or bulk solids. This is the correct answer because 'liter' is the standard unit of measurement for volume in the metric system. It is important for nursing professionals to be familiar with metric conversions as they frequently need to administer medications in liquid form where dosages are often given in milliliters or liters. Option B, 'log,' is incorrect because it does not correspond to any standard unit of measurement in the metric system. Option C, 'link,' and Option D, 'lever,' are also incorrect as they are not units of measurement but rather refer to other concepts. Understanding the correct unit of measurement is crucial in nursing practice to ensure accurate dosing and administration of medications. By knowing that 'L' stands for liter in the metric system, nurses can accurately calculate and administer medications based on prescribed dosages. This knowledge helps prevent medication errors and ensures patient safety. It is essential for nursing students to grasp metric conversions to perform their clinical responsibilities effectively and provide high-quality care to patients.

Correct Answer: A

Rationale: The correct answer is 'millimeter' (A). 'mm' stands for millimeter, which is equal to one-thousandth of a meter. Choice B, 'megabyte,' is a unit of digital information storage, not a metric system unit. Choice C, 'millipede,' is an arthropod and not a metric unit. Choice D, 'metered,' is not a standard metric unit abbreviation.

Correct Answer: B

Rationale: In the metric system, 'mg' stands for milligram. A milligram is a unit of mass equal to one thousandth of a gram. This is the correct answer because the prefix "milli-" indicates a factor of 1/1000. In healthcare, especially in nursing, precise medication dosages are crucial for patient safety. Nurses often need to convert between different units of measurement, including milligrams, to ensure accurate administration of medications. Option A, microgram, is incorrect because 'µg' is the symbol for microgram, representing one millionth of a gram. Option C, gigabyte, is a unit of digital information storage and not related to the metric system for mass. Option D, megagram, is also known as a metric ton, which is equal to 1000 kilograms, and is not represented by 'mg'. Understanding metric conversions is essential for nurses to accurately calculate medication dosages, intravenous fluids, and other medical measurements. Knowing the correct symbols and units in the metric system is a foundational skill for healthcare professionals to provide safe and effective care to their patients.

Correct Answer: B

Rationale: To convert millimeters to centimeters, you need to divide by 10 since there are 10 millimeters in 1 centimeter. Therefore, 345,000 mm · 10 = 34,500 cm. Choice A is incorrect because it is a factor of 10 higher than the correct answer. Choice C is incorrect because it represents the original quantity in centimeters, not the converted value. Choice D is incorrect as it erroneously multiplies the millimeters by 1,000 instead of dividing by 10 to convert to centimeters.