Using dry weight helps avoid which risk in PD therapy?

Using dry weight helps avoid which risk in PD therapy?

• A. Overhydration
• B. Over- or under-dialysis
• C. Infection
• D. Hyperkalemia

Answer: (B)

Dry weight is the post-dialysis weight that reflects a euvolemic, or fluid-balanced, patient. In PD, the amount of ultrafiltration you aim for with each exchange is guided by this target. When you use dry weight to set the prescribed fluid removal, you aim to remove just enough fluid to reach that euvolemic state without tipping into too little removal (which leaves the patient volume overloaded and can compromise dialysis efficiency) or too much removal (which can cause hypotension and other issues that also disrupt adequate solute clearance). In other words, anchoring therapy to dry weight helps balance the dialysis dose, preventing extremes in both under- and over-dialysis. Infection and hyperkalemia are important PD risks, but they relate more to technique and dialysate composition than to the volume target itself.

Dry weight is the post-dialysis weight that reflects a euvolemic, or fluid-balanced, patient. In PD, the amount of ultrafiltration you aim for with each exchange is guided by this target. When you use dry weight to set the prescribed fluid removal, you aim to remove just enough fluid to reach that euvolemic state without tipping into too little removal (which leaves the patient volume overloaded and can compromise dialysis efficiency) or too much removal (which can cause hypotension and other issues that also disrupt adequate solute clearance). In other words, anchoring therapy to dry weight helps balance the dialysis dose, preventing extremes in both under- and over-dialysis. Infection and hyperkalemia are important PD risks, but they relate more to technique and dialysate composition than to the volume target itself.