During infusion resistance was met when contrast was injected to infuse sir-spheres into patient.Tubing disconnected from microcatheter and attempt is made to flush microcatheter which was again met with resistance.Microcatheter and guidewire were removed and new 2.9 french microcatheter was inserted.Case completed.This incident was not cause by sir-spheres, however as the result of this catheter clogging - 14.42 mci's was administered and 21.2 mci's were drawn.So only 68% of the dose was administered to patient.
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