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ARE PRESCRIBED INFUSIONS RUNNING AS INTENDED?


6 to 10 restarts


3 to 5 restarts


No 1 to 2 restarts restarts


Key: n Oncology n Medical n Surgery


Figure 7: Histogram showing the frequency of each combination of VTBI and rate for infusion pumps used in the oncology, medical and surgical departments


Figure 5: Infusions and how many times they were restarted


Key: n Oncology n Medical n Surgery


Figure 6: 3D histogram showing the frequency of each combination of VTBI and rate for all infusions


group of 200 infusions of very low VTBI used at a very high rate—these are often used to give a fast bolus to the patient.


Figure 7 shows the infusions per department and the frequency of each combination in each department. For clarity, only the results of the oncology, medical and surgical departments are shown, as they account for the majority of infusions in the study. It can be seen that the pumps from each of these three departments contribute log events in similar ways to the two groups identifi ed before, which indicates


18 CareFusion Supplement BJN July 2013


Figure 8: 3D histogram showing the frequency of each combination of VTBI and rate for infusion pumps used in the oncology, medical and surgical departments with VTBI of 100 ml or less


that the pumps in these departments are being used for similar types of infusion.


Closer analysis of VTBI between 1 ml and 100 ml is presented in Figure 8. This range accounts for 53% of all cases (1970 infusions). It can be seen that the most common infusion is set with a VTBI of 100 ml, a rate of 200 ml per hour and a duration of 30 minutes. This combination is used in 13% of all cases (477 infusions), which means that about one in eight infusions uses this combination of VTBI and rate. (For the Graseby pump, these rates and volumes have to be


over 10 restarts


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