What graft flow volume indicates poor dialysis?

What graft flow volume indicates poor dialysis?

• A. >1000
• B. <250
• C. 500
• D. 1000-1500

Answer: (B)

Graft flow volume shows how much blood moves through the dialysis graft per minute, which directly determines how much blood can be exposed to the dialyzer for clearance. If the flow is extremely low, only a small amount of blood reaches the dialyzer each minute, so waste products aren’t removed efficiently and the dialysis dose becomes insufficient. That’s why a markedly low graft flow volume is the best indicator of poor dialysis. In contrast, higher flow volumes provide enough blood to achieve adequate clearance, so they are not associated with poor dialysis. If you encounter very low flow, it’s a cue to assess for potential issues like stenosis and address them to restore adequate flow.

Graft flow volume shows how much blood moves through the dialysis graft per minute, which directly determines how much blood can be exposed to the dialyzer for clearance. If the flow is extremely low, only a small amount of blood reaches the dialyzer each minute, so waste products aren’t removed efficiently and the dialysis dose becomes insufficient. That’s why a markedly low graft flow volume is the best indicator of poor dialysis. In contrast, higher flow volumes provide enough blood to achieve adequate clearance, so they are not associated with poor dialysis. If you encounter very low flow, it’s a cue to assess for potential issues like stenosis and address them to restore adequate flow.