Final answer:
The nurse would not use the example of white bread as a whole grain because it is made from refined grains and lacks dietary fiber and nutrients.
Step-by-step explanation:
The nurse would not use the example of white bread as a whole grain. While bread is a grain, white bread is made from refined grains, which means that the bran and germ have been removed during processing. Therefore, white bread does not contain the same amount of dietary fiber and nutrients as whole grain bread.