Vascular Access Module #3: AVF Maturation ... - BC Renal Agency

Case Study: Access MonitoringState possible causes for (con’t):• Vessel spasm– No backflow upon aspiration but instills well– Patient may say it’s “vibrating”; nurse may seevibration or feel it upon needle aspiration– Vessel doesn’t have adequate blood supply so pump is“sucking”– Venous needle may be difficult to cannulate– Needle alignment off centre– Fragile, new, or immature vessel• Hematoma formation– Infiltrated vessel– Inadequate hemostasis post needle removal153