Ultrafiltration rate (dialysis)
Dialysis ultrafiltration rate: net fluid removed per session, normalized to post-dialysis weight (mL/kg/hr), against the 13 mL/kg/hr cardiovascular-risk threshold.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Ultrafiltration volume
- 3.5 L
- Session duration
- 3 hours
- Post-dialysis weight
- 70 kg
Result: Ultrafiltration rate 16.67 mL/kg/hr: above the 13 mL/kg/hr cardiovascular-risk threshold.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Threshold
- above 13 mL/kg/hr is the Flythe 2011 tertile cutoff associated with higher cardiovascular morbidity and mortality.
What you enter
- Ultrafiltration volume
- Session duration
- Post-dialysis weight
How this is calculated
- Formula
- UF rate = ultrafiltration volume / (post-dialysis weight x session hours), in mL/kg/hr.
Flythe JE, Kimmel SE, Brunelli SM. Rapid fluid removal during dialysis is associated with cardiovascular morbidity and mortality. Kidney Int. 2011;79(2):250-257. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.