Table 2.

Postdialysis target weight needs to be regularly assessed because an inappropriately low target increases the risk of intradialytic hypotension

Assessment	Volume overload	Volume depleted
History	↑Dietary salt intake	↓Appetite
	↑Dyspnea	Diarrhea/vomiting
Examination	No postural hypotension	Postural hypotension
	↑Blood pressure	↓Blood pressure
	↑Weight trend	↓Weight trend
	↑Neck veins	↓Neck veins
	↑Peripheral edema	No edema
Laboratory	Low albumin	↑Albumin
	↑Natriuretic peptides	↓Natriuretic peptides
	↑Serum CA125	Normal serum CA125
Imaging chest X ray	↑CTR	Normal/↓CTR
	Septal lines
	Kerley B lines
Lung ultrasound	>10 B lines	<5 B lines
Abdominal ultrasound	<50% collapse IVC	>50% IVC collapse
Bioimpedance	↑ECW/ICW	↓ECW/ICW
Dialysis session RBV	Flat line	Rapid decline
Dialysis session VO2	Stable O2 saturation	↓O2 saturation

CA125, cancer antigen 125; CTR, cardio-thoracic ratio; ECW, extracellular water, ICW, intracellular water; RBV, relative blood volume; VO₂, venous oxygen saturation.