<prompt> An old woman is required to receive 4 cycles of cancer chemotherapy. After her first cycle, she developed chemotherapy induced thrombocytopenia. Then in the next cycle, it would be appropriate to give this patient:Darbopoietin alphaFilgrastim G-CSFIron dextranOprelvekin IL-11  <response>: Oprelvekin acts like megakaryocyte colony stimulating factor and can be used to treat and prevent chemotherapy induced thrombocytopenia. Filgrastim G-CSF and sargramostim GM-CSF are used to prevent leucopenia. Iron Dextran iv or im is used in Anaemia. 