Prescription and treatment
Fluid and weight between dialysis sessions
Why fluid limits and target weight need individual review.
Why do fluids accumulate?
When kidney function decreases, the body cannot excrete water and sodium in the usual way. Douching removes some of the fluid, but the amount that accumulates between sessions is affected by residual urine, salt in food, the length of the break between sessions, and cardiac and nutritional status.
Therefore, the phrase “drink a fixed amount” is not sufficient for all people. The team reviews pre- and post-session weight, blood pressure, symptoms, physical examination, and trends over time.
Target weight is not a fixed number
Target weight is a clinical estimate that changes if nutrition, muscle mass, residual urine, or cardiac status changes. Shortness of breath and edema may indicate volume overload, while dizziness, cramping, or a drop in pressure during a session may indicate the need to review the plan, but these symptoms are not an isolated diagnosis.
Conference report KDIGO about blood pressure and volume in dialysis It explains that volume management needs to balance multiple factors, and that the evidence does not justify a one-size-fits-all rule for every patient.
Safe operation steps
- Ask your dialysis unit what daily amount best fits your residual urine and target weight.
- Pay attention to sodium; Salty foods may increase thirst and fluid accumulation.
- Count soup, ice, drinks and liquid foods into the plan developed by the team.
- Record symptoms and weight between sessions, and present trends to the team rather than adjusting the plan yourself.
- The team quickly reported shortness of breath, increasing swelling, severe dizziness, fainting, or chest pain.
What should not be done?
Do not force yourself to become severely dehydrated, do not change diuretics or blood pressure medications, and do not request a target weight loss based on a single reading. Weight change may be due to nutrition, illness, or muscle loss, rather than fluids alone.
Sources
Key points
- Why fluid limits and target weight need individual review.