elaine&karlas+chemo+answer

why is chemotherapy given in stages and over a long period of time?
Because the cell is more vulnerable at a certain stage (anaphase), chemo treatment has to happen during this phase in order to get the better chance of killing the tumorous cells. But, all cells aren't in the same phase at the same time, so you can only kill a few cells at a time. T hen, you have to wait to go into treatment again because the other cells weren't ready before. This will go on until all the tumorous cells are killed.