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There are currently 7 terms in this directory beginning with the letter U.
Ultrafiltrate
In peritoneal dialysis, the net amount of fluid resulting when the original volume of the dialysate used for a certain dwell is subtracted from the volume of the drained dialysate(effluent-infused dialysate = ultrafiltrate).

Ultrafiltration
The process by which plasma water is removed from the blood related to an osmotic pressure gradient. The rate of ultrafiltration is highest in the beginning of an exchange when the osmotic gradient is highest.

Ultrafiltration failure
The inability of the peritoneal membrane to provide adequate ultrafiltration.

Universal Precautions
Those necessary safeguards based upon the assumption that all human blood and certain human body fluids are treated as if they are known to be infectious for any blood borne pathogens.

Urea
Waste products formed by the breakdown of protein in the body.

Uremia
Toxic condition that develops in kidney failure due to the accumulation of waste products in the blood that are normally excreted in the urine.

Uremic Frost
A white, powder-like substance that results from the precipitation of urea crystals secreted in the sweat. It may be seen on the face and trunk. Unusual to see today as dialysis usually begins before this develops.
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