ATI TEAS 7
Metric Conversions for Nursing
1. Convert 100 grams to kilograms.
- A. 0.1 kg
- B. 1 kg
- C. 10 kg
- D. 0.01 kg
Correct answer: A
Rationale: To convert grams to kilograms, you need to divide by 1000 since there are 1000 grams in a kilogram. So, 100 grams divided by 1000 equals 0.1 kilograms, making choice A the correct answer. Choices B, C, and D are incorrect because they do not involve the correct conversion factor or calculation. Choice B of 1 kg is the equivalent of 1000 grams, which is 10 times the given value of 100 grams, making it too large. Choice C of 10 kg is 100 times the given value, and choice D of 0.01 kg is 10 times smaller than the correct conversion.
2. Convert 3.75 liters to milliliters.
- A. 3.75 ml
- B. 375 ml
- C. 3750 ml
- D. 37.5 ml
Correct answer: C
Rationale: To convert liters to milliliters, you need to multiply by 1000 since there are 1000 milliliters in 1 liter. Therefore, 3.75 liters x 1000 = 3750 milliliters. This means that option C, 3750 ml, is the correct conversion. Choices A, B, and D are incorrect because they do not reflect the correct conversion from liters to milliliters.
3. What is 0.1 mg to mcg?
- A. 100 mcg
- B. 10 mcg
- C. 1000 mcg
- D. 1 mcg
Correct answer: A
Rationale: To convert milligrams to micrograms, you need to multiply by 1000. Therefore, 0.1 mg is equal to 100 mcg. This conversion is commonly used in medical calculations. Choice B (10 mcg) is incorrect because it would be the conversion from milligrams to micrograms if multiplied by 100, not 10. Choice C (1000 mcg) is incorrect as it would be the conversion from grams to micrograms if multiplied by 1000. Choice D (1 mcg) is incorrect as it represents the original unit without conversion.
4. What is the formula for calculating the volume of a solid object?
- A. V = W/L
- B. V = L x W x H
- C. V = W/H
- D. V = L/W
Correct answer: B
Rationale: The correct formula for calculating the volume of a solid object is V = L x W x H, where L represents the length, W represents the width, and H represents the height. Choice A (V = W/L) is incorrect as it represents a division operation, not multiplication. Choice C (V = W/H) is incorrect as it does not account for the width and height. Choice D (V = L/W) is incorrect as it represents the inverse operation of what is needed to calculate volume.
5. How many milliliters are in 0.5 liters?
- A. 50 mL
- B. 500 mL
- C. 5,000 mL
- D. 5 mL
Correct answer: B
Rationale: To convert liters to milliliters, you need to multiply by 1000 since there are 1000 milliliters in 1 liter. Therefore, 0.5 liters x 1000 = 500 milliliters, making choice B the correct answer. Choices A, C, and D are incorrect because they do not correctly convert liters to milliliters.
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