Amy, a 4-year-old Caucasian female, has been complaining of being tired all the time. She is pale and a picky eater. Her mother is a single mom with a small budget to feed a large family. Amy only eats pasta, breads, and hot dogs, and drinks only artificial fruit punch.

Marcus is a 5-year-old African-American male who has just moved to New York City, and is visiting his new pediatrician for a kindergarten physical. His mom tells the nurse that she carries the â??traitâ?- and wants Marcus screened for it.

Richard has noted over the past several weeks that he is having more bruises, or ecchymosis, all over his body. After coughing this morning, he noticed tiny red marks all around his eyes.

Identify the blood disorder each of the three patients are at risk for. Base your identifications upon symptoms, lifestyle, or family history.

Include a description of the cause of the disorder, how it can be diagnosed, what can be done to treat it, and how to prevent it in the future