A patient weighing 128 lb has what weight in kg?

To convert pounds to kilograms, you use the conversion factor where 1 pound is approximately equal to 0.453592 kilograms. To find out the weight in kilograms, you multiply the weight in pounds by this conversion factor.

For a patient weighing 128 pounds, the calculation would look like this:

128 lb * 0.453592 kg/lb = 58.2 kg.

This calculation shows that the weight in kilograms of a person weighing 128 pounds is accurately converted to 58.2 kg. Therefore, choosing 58.2 kg as the answer is correct, as it reflects the accurate conversion from pounds to kilograms using the standard conversion factor.