Nurse reported the medfusion syringe pumps are having trouble recognizing the 10ml bd pre-filled flushes (the posiflush 10ml pre-filled normal saline flushes).The pump will read "invalid syringe size" and reseating the flush does not work.The workaround nursing has come up with is to use an alcohol wipe package or the label from a syringe and place it between the flange of the syringe and the slot the flange sits in on the right side of the pump.Then it will recognize the 10ml flush.Medical engineering evaluated and found the change in the plunger when posiflush came out caused increased drag and thereby increased pressure upon deployment of the fluid.After a matter of just a few minutes the pressure reading increases to the point that the pump shuts off.It reads this as an occlusion.Because of this we determined that a different flush has to be used to prevent the pressure increase.Per site reporter: bd does not recommend use of this syringe with pump.
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