Fresenius Medical Care 2008T Operator's Manual page 280

Glossary
SVS Profile—A programmable feature for varying the level of sodium in the dialysate throughout the
course of treatment.
SVS Time—Time length in hours and minutes prescribed for SVS program.
Theoretical Conductivity (TCD)—The expected conductivity of the dialysate based upon the
concentrate type, and sodium and bicarbonate values entered in the Dialysate screen. TCD is measured in
milliSiemens per centimeter (mS/cm) and is corrected to 25°C.
Transducer—An electronic device inside the 2008T hemodialysis machine that reads the pressure inside
the arterial and venous drip chambers. The drip chamber and transducer are connected via a thin tube that
is part of the extracorporeal blood circuit.
Transducer Protector (TP)—a small, disposable, plastic cap containing a hydrophobic, paper filter that
fits over each pressure port. It is inserted between the pressure monitor line and the pressure port
connection and is used to prevent the transducer from becoming wet or contaminated with blood. There
are two transducer protectors for each connection, a disposable external TP that is to be replaced with
each treatment. A second internal TP is also installed.
Ultrafiltration (UF)—Ultrafiltration is the process of drawing off excess fluid from the patient during
treatment. The 2008T hydraulic system is a closed system that uses a separate UF pump for greater
accuracy.
280 2008T Machine Operator's Manual P/N 490122 Rev N