At 6 years old Marie was diagnosed with leukemia. She was treated with several rounds of chemo and radiation and appeared cancer free after a year. Marie seemed to be fine for a few months after treatment then her mother noticed that she started looking pale, feeling very tired all the time and she was sneezing and sniffling constantly (she was always sick). Her mother also then noticed petechiae on Marieās skin. Marie was rushed to the hospital after her mom found her lying lifeless on the ground in her playroom.
Explain how chemo and radiation can contribute to Marieās current condition (keep in mind the type of anemia she has).