ATI TEAS 7
Metric Conversions for Nursing Questions
Question 1 of 5
Convert 1.25 kilograms to grams.
Correct Answer: C
Rationale: In nursing, accurate metric conversions are crucial for safe medication administration and clinical practice. When converting 1.25 kilograms to grams, the correct answer is C) 1,250 grams. The rationale for this answer lies in the basic metric system conversion: 1 kilogram is equal to 1000 grams. Therefore, 1.25 kilograms would be 1.25 x 1000 = 1,250 grams. Option A) 12.5 grams is incorrect as it reflects a misunderstanding of the decimal placement when converting between kilograms and grams. Option B) 125 grams is incorrect as it fails to account for the magnitude of the conversion from kilograms to grams. Option D) 1250 mg is incorrect as it represents milligrams, not grams. Educationally, understanding metric conversions is fundamental for nurses to ensure accurate dosing, IV fluid calculations, and patient monitoring. Practicing these conversions reinforces numerical skills essential for nursing practice. Remembering the metric system prefixes (kilo-, milli-) and their relative values is key to mastering these conversions effectively.
Question 2 of 5
How many millimeters are in 5 centimeters?
Correct Answer: B
Rationale: To convert centimeters to millimeters, you multiply by 10 since there are 10 millimeters in a centimeter. Therefore, 5 centimeters x 10 = 50 millimeters, making choice A the correct answer. Choice C, '5 mm,' is incorrect as it represents the original quantity in millimeters. Choice D, '500 cm,' is incorrect as it converts the centimeters to centimeters instead of millimeters.
Question 3 of 5
How many centimeters are in 4 meters?
Correct Answer: B
Rationale: In this question, the correct answer is B) 400 cm. This conversion requires understanding the relationship between meters and centimeters in the metric system. To convert meters to centimeters, you need to know that 1 meter is equal to 100 centimeters. Therefore, to find out how many centimeters are in 4 meters, you multiply 4 (meters) by 100 (centimeters in one meter) which equals 400 centimeters. Now, let's analyze why the other options are incorrect: A) 40 cm: This is incorrect because it represents the conversion of 0.4 meters to centimeters, not 4 meters. C) 4 cm: This is incorrect because it is the same value as the original measurement in meters, not a conversion to centimeters. D) 0.4 cm: This is incorrect because it represents a fraction of a centimeter, not the conversion from meters to centimeters. Understanding metric conversions is crucial in various fields, especially in nursing where precise measurements are essential for medication dosages, patient care, and medical procedures. Mastering these conversions ensures accurate and safe practice in healthcare settings.
Question 4 of 5
Which basic SI conversion is incorrect?
Correct Answer: D
Rationale: The correct SI conversion for grams (g) to milligrams (mg) is 1 g = 1000 mg, not 100 mg. Therefore, option D is incorrect. Option A is correct as 1 cm is equal to 10 mm, option B is correct as 1 m equals 100 cm, and option C is correct as 1 km is equivalent to 1000 m. Understanding these basic SI conversions is essential for accurate measurements and calculations in various scientific fields.
Question 5 of 5
What is the value of one femtometer (fm) in meters?
Correct Answer: A
Rationale: A femtometer is equivalent to 10^-15 meters. The prefix 'femto-' signifies a factor of one quadrillionth (10^-15), making choice A the correct answer. Choice B (10^-9 meters) represents a nanometer, not a femtometer. Choice C (10^-12 meters) corresponds to a picometer, not a femtometer. Choice D (10^-18 meters) is even smaller than a femtometer and refers to an attometer, not a femtometer.