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Your body evacuates the chemicals from chemotherapy mainly through your urine. Active residue from the medication stays in the body for 72 hours after administration, hence the need to observe certain precautions.
Additionally, your ankles or fingers may swell because you are retaining water and salt. This is known as oedema. The cortisone treatment preceding chemotherapy or associated with anti-hormone therapy is the most frequent cause of this phenomenon, though some kinds of chemotherapy are themselves directly responsible for water/salt retention.
Your weight is checked regularly to assess whether you are eliminating enough water. Your urine is also sometimes measured to see that sufficient amounts are being produced.
Certain forms of chemotherapy color your urine red, blue, green or bright yellow. The team will warn you about this effect which is of no importance for your health.
If you notice one of these signs, tell your doctor or care team straightaway.
Chemicals from chemotherapy stay in the blood for from a few hours to several days. Active residues are present in your urine, but also in your stools and all body fluids (vomit, saliva, genital secretions, sweat etc.). Those around you are advised to wash their hands or, even better, to wear gloves in case of possible contact with a body fluid. The treatment is beneficial for you, but those around you need to be protected from it, especially young children and pregnant women.
During your treatment and the three following days: