How many feet are in one mile?

Correct Answer: B

Rationale: The correct answer is B: 5280 feet. One mile is equivalent to 5280 feet. This is a standard conversion that is widely known. Choice A (5000 feet) is incorrect as it is not the exact conversion of a mile. Choice C (5300 feet) and choice D (5500 feet) are also incorrect as they do not represent the accurate conversion from miles to feet.

Correct Answer: A

Rationale: The correct answer is A: 2.54 cm. One inch is equivalent to 2.54 centimeters. This conversion factor is commonly used when converting measurements between the metric and imperial systems. Choice B (3 cm) is incorrect as it is not the accurate conversion factor for 1 inch. Choice C (2 cm) is also incorrect as it does not reflect the correct conversion. Choice D (1 cm) is incorrect as it inaccurately states the conversion value for 1 inch.

Correct Answer: B

Rationale: The correct answer is B: 1000 meters. One kilometer is equivalent to 1000 meters. Therefore, 1000 meters is the accurate conversion from kilometers to meters. Choices A, C, and D are incorrect. Choice A (100 meters) is incorrect as it represents 1/10th of a kilometer. Choice C (500 meters) is incorrect as it is half the value of a kilometer. Choice D (2000 meters) is incorrect as it exceeds the value of a kilometer.

Correct Answer: C

Rationale: The correct answer is 1,000 milliliters in 1 liter. The conversion from liters to milliliters involves multiplying by 1,000 since 1 liter is equivalent to 1,000 milliliters. Choice A, 10 mL, is incorrect as it represents only a fraction of a liter. Choice B, 100 mL, is also incorrect as it is one-tenth of a liter. Choice D, 10,000 mL, is significantly larger than the correct answer and represents 10 liters, not 1 liter.

Correct Answer: C

Rationale: In nursing, understanding metric conversion is crucial for accurate medication administration and patient care. When converting kilograms to grams, it is important to remember that there are 1000 grams in 1 kilogram. Therefore, to convert 5 kilograms to grams, we multiply 5 by 1000, which equals 5,000 grams. Option A (50 grams) is incorrect because it does not account for the correct conversion factor. Option B (500 grams) is also incorrect as it represents the weight of half a kilogram. Option D (50,000 grams) is incorrect as it incorrectly multiplies 5 by 10,000 instead of 1,000. Educationally, this question reinforces the importance of mastering basic metric conversions in nursing practice. Nurses must be able to convert between different units accurately to ensure proper dosing and patient safety. Understanding these conversions also helps in interpreting lab values and understanding medication orders. Mastery of these fundamental skills is essential for nursing professionals to provide high-quality care.