In the metric system, what factor does the prefix kilo- represent?

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: 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 context of nursing and healthcare, understanding metric prefixes is crucial for accurate medication dosage calculations and other clinical procedures. The correct answer to the question, "Which metric prefix represents 10^-2?" is A) centi. The metric prefix "centi" signifies a factor of 10^-2, which means one hundredth (1/100). In the metric system, centi is commonly used to convert larger units to smaller units. For example, 1 meter is equal to 100 centimeters. Option B) milli represents 10^-3, which is one thousandth (1/1000). Milli is used for even smaller units than centi, such as milliliters (mL) which are commonly used in medication dosages. Option C) nano represents 10^-9, which is one billionth (1/1,000,000,000). Nano is used for extremely small measurements, such as nanometers (nm) in microbiology or nanotechnology. Option D) deci represents 10^-1, which is one tenth (1/10). Deci is not as commonly used in healthcare as centi or milli. Understanding metric prefixes is essential for nurses to accurately interpret measurements, administer medications, and communicate effectively with healthcare team members. Mastery of these prefixes ensures patient safety and optimal care delivery.

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.