Right arthroplasty total knee performed on (b)(6) 2016.Ambulation pump containing 600 ml ropivacaine 0.2% started at 8 ml at 11:20.Pump was obtained from pharmedium lot 16287045s, and dispensed by our hospital pharmacy.On (b)(6) 2016 at approx 10:15, the pt's nurse noticed on routine check that the pump was empty.Both pa and anesthesiologist verified that pump was empty.Pt's dressing was clean/dry/intact with no leakage noted.Pt did not experience any signs of symptoms of toxicity, but pt was transferred to the imcu for observation given potential gravity of local anesthetic toxicity.No cardiac or neurological signs of toxicity were noted, and pt was discharged.
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