On going precipitation of platelets and rbc in the hemodialysis tubing (gambro cassettes) sets.The problem was first noticed in the first week of (b)(6) 2018.The extracorporeal circuit tubings showed "white thrombus" in the venous tubings.The problem has persisted despite changing the tubing set from a different lot number and is now visible on the arterial side in some patients.No adverse events in the patient has been seen so far.All variable during in-center dialysis treatments have been tracked with no consistent finding to account for this clumping of rbc and platelets in the tubings.Suspect: yes.Primary: yes.Product type: drug/ biologic.Event abated after use stopped or dose reduced: no.Event reappeared after reintroduction: yes.Therapy start date: (b)(6) 2018.Therapy end date: (b)(6) 2018.
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