A (b)(6) male pt came to the hospital for a left total knee arthroplasty.During procedure, pt had an arterial line placed.The plastic catheter sheared and remained caught within the subcutaneous tissues.The anesthesia record documentation by crna: using an arrow arterial catheter lot # 14f17g0056 left radial artery was accessed with 1 attempt.Guide wire inserted into artery through catheter and needle as recommended.Next, catheter was placed into artery over guide wire.Upon removal of guide wire and needle through catheter, provider was unable to remove from catheter.Whole device including catheter was then removed as 1 unit.Upon removal catheter was noticed to be torn and portion of catheter remained under pt's skin.Anesthesiologist made aware of situation and will consult general surgery.Exploration of left wrist with removal of retained arterial line catheter sheared off portion of an arterial line catheter was identified and removed.
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