A school-age child with leukemia experienced severe nausea and vomiting when receiving chemotherapy for the first time. Which of the following is the most appropriate nursing action to prevent or minimize these reactions with subsequent treatments?
a. Administer the chemotherapy between meals.
b. Give an antiemetic before chemotherapy begins.
c. Have the child bring favorite foods for snacks.
d. Keep the child NPO (nothing by mouth) until nausea and vomiting subside.