ultrafiltration
- noun
- /ˌʌltrəfɪlˈtreɪʃən/
- Specialized
:
ultrafiltración
- In nephrology, ultrafiltration plays a critical role in filtering out small molecules from the bloodstream.
- ultrafiltration pressure
Examples
-
Prerenal azotaemia is, by definition, rapidly reversible after restoration of renal blood flow and glomerular ultrafiltration pressure.
Academic text (1995) -
Ultrafiltration of plasma, with standard dialysis equipment, may be required when conservative measures fail.
Academic text (1995) -
CVVH requires only a double-lumen venous catheter; however, a blood pump is needed to generate ultrafiltration pressure across the dialysis membrane.
Academic text (1995) -
During dialysis, ultrafiltration is used to remove excess fluid and waste products from the blood.
-
The patient's treatment involved ultrafiltration to help manage fluid overload caused by heart failure.
Synonyms
60
5.0
A process that removes small substances from a liquid by passing it through a thin filter
How Fine
- Specialized
- Specialized
15
3.8
Surface Forms
Morphology
ultrafiltration = filtration (semi-transparent) = ultra + filter + ation
The step from filtration to ultrafiltration is structurally clear, but the medical meaning is specialized and not fully recoverable from the components alone.
Etymology
Ultrafiltration combines the parts ultra- meaning 'beyond' and filter meaning 'to remove unwanted parts'. So in the body it describes a very fine filtering of blood that removes extra fluid and small molecules in the kidneys or during dialysis.