Nursing staff were attempting to change out the filter cartridge on the "baxter prismax" continuous renal replacement therapy (crrt) machine, and 4 times in a row, received the same error message on the screen after the machine attempted to prime the lines with iv fluid.The machine takes 10 minutes to prime the iv lines, and on all 4 occasions, the timer stopped at 9:08, stating that there was a blockage in the line, which there was not.Each time this stoppage happened, an entire new filter must be brought out, and all of the iv bags must be replaced, which takes approximately 30 minutes.With this happening 4 times in a row, it caused an approximate 2-hour delay in patient care.The 5th filter that was used worked properly, and the staff was able to continue with the crrt for the patient.All 4 of the failed filters were from the same lot number.
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