Urea rebound - some disadvantages of urea kinetic modeling
نویسندگان
چکیده
منابع مشابه
Urea rebound and delivered Kt/V determination with a continuous urea sensor.
BACKGROUND The recent introduction of urea sensors for dialysis monitoring has made possible new approaches to urea kinetic modelling. In this study we show how the equilibrated postdialysis urea concentration (Ceq) and Kt/V corrected for double-pool urea kinetics (Kt/Vdp) can be accurately determined using an on-line sensor providing a continuous measure of blood water urea. A modification of ...
متن کاملDevelopment of an optical monitoring technology for urea rebound assessment
The aim of the study was to explore the possibility of utilizing UV-absorbance measurements of spent dialysate to assess urea rebound. Ten patients on chronic three-times-a-week hemodialysis were included in the study. On-line UV-absorbance of spent dialysate was monitored. Urea rebound was calculated based on urea concentration in blood (Rb) and UV-absorbance in spent dialysate (Ra). Rb and Ra...
متن کاملUrea Output by L3 Teladorsagia circumcincta and some Properties of Two Urea Producing Enzymes
BACKGROUND Like several other parasites, Teladorsagia circumcincta secretes or excretes urea, but neither the rate of efflux nor the possible metabolic sources of the urea has been considered. METHODS Parasites were maintained by passage through sheep. Urea efflux was measured using phenol/hypochlorite after treatment with urea aminohydrolase. The kinetics of creatine amidinohydrolase and arg...
متن کاملIntermittent peritoneal dialysis: urea kinetic modeling and implications of residual kidney function.
BACKGROUND Intermittent peritoneal dialysis (IPD) is an old strategy that has generally been eclipsed, in the home setting, by daily peritoneal therapies. However, for a select group of patients with exhausted vascular access or inability to receive PD at home, in-center IPD may remain an option or may serve as an incremental strategy before initiation of full-dose PD. We investigated the resid...
متن کاملA kinetic assay for urea in undiluted urine specimens.
We describe a kinetic assay for quantifying urea in undiluted urine samples. The assay linearity extends to urea concentrations of 400 mmol/L, is free from interference from blood (10 mL/L) or bilirubin (1 mmol/L), is sufficiently precise for routine use, and correlates well with an established method for assay of diluted urine samples.
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ژورنال
عنوان ژورنال: Scripta Scientifica Medica
سال: 2013
ISSN: 1314-6408,0582-3250
DOI: 10.14748/ssm.v45i1.343