A 15-year-old girl is seen for a school physical. Her weight is 121 pounds, and her height is 64 inches. The nurse would calculate her body mass index (BMI) to be ___________
Fill in the blank(s) with correct word
20.7
Rationale:
To calculate the BMI, take the weight in kilograms and divide by the height in meters squared. To convert weight from pounds to kilograms, divide by 2.2; 121 pounds divided by 2.2 = 55 kg. To convert the height in inches to meters, multiply by 0.0254; 64 inches multiplied by 0.0254 = 1.63 meters. 1.63 meters squared = 2.66 m2. 55 kg divided by 2.66 meters squared = 20.7 (BMI).
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