<p>Patients must receive the correct dose of chemotherapy delivered over the prescribed period of time. Ambulatory 5 fluorouracil (5FU) chemotherapy is commonly delivered to patients with colorectal cancer via a Baxter LV5 infusor, into either a Hickman catheter or a peripherally inserted central catheter (PICC). However, in this study, infusors were found to be slow at delivering treatment, and PICC, but not Hickman catheter, patients received less than their prescribed amount of 5 FU. Possible causal factors are identified, changes in practice are discussed and directions for further research highlighted.</p>