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The weight gained between dialysis sessions from fluid and salt intake - kept below ~3% of dry weight to protect the heart.
Between dialysis sessions, fluid accumulates from dietary and fluid intake, and the gain is measured as interdialytic weight gain (IDWG). Target: under 3% of dry weight (about 2-3 kg for most patients). Higher IDWG is linked to hypertension, left ventricular hypertrophy, intradialytic hypotension from aggressive ultrafiltration, and higher mortality. Controlling IDWG is mostly a sodium game - salt drives thirst and fluid retention - so low-sodium eating is the single most effective lever, alongside fluid tracking and the prescribed fluid allowance.
The medical treatment that artificially performs the kidney's filtering functions — removing waste, toxins, and excess fluid from the blood when kidneys fail.
The target body weight of a dialysis patient after all excess fluid has been removed — the weight at which blood pressure is normal without medication.
Excess extracellular fluid volume in kidney patients from inadequate excretion, causing edema, hypertension, pulmonary congestion, and increased cardiovascular risk.
The process of removing excess fluid from a patient's blood during dialysis by applying pressure across the dialyzer membrane.
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