How does a CBC test help monitor chemotherapy?

For patients undergoing chemotherapy, a CBC test is vital in monitoring blood cell levels. Chemotherapy can lower red blood cells (RBCs), white blood cells (WBCs), and platelets, leading to conditions like anemia, increased infection risk, or thrombocytopenia (low platelet count). Regular CBC tests allow doctors to adjust the dosage of chemotherapy or delay treatment if blood cell counts drop too low. Monitoring the CBC results helps ensure that the treatment is both safe and effective, allowing for prompt intervention to prevent serious side effects.