Whole body Kt/V from dialysate urea measurements during hemodialysis.
نویسندگان
چکیده
منابع مشابه
Online measurement of urea concentration in spent dialysate during hemodialysis.
BACKGROUND We describe online optical measurements of urea in the effluent dialysate line during regular hemodialysis treatment of several patients. Monitoring urea removal can provide valuable information about dialysis efficiency. METHODS Spectral measurements were performed with a Fourier-transform infrared spectrometer equipped with a flow-through cell. Spectra were recorded across the 50...
متن کاملHemodialysis blood access flow rates can be estimated accurately from on-line dialysate urea measurements and the knowledge of effective dialyzer urea clearance.
Measurement of blood flow rate (Qa) is used to monitor arteriovenous fistulas and grafts that are used for hemodialysis blood access. Most Qa measurements use indicator dilution techniques to measure the recirculation that is induced by the reversal of hemodialysis blood lines. R plus the dialysis circuit flow (Qb) allows the calculation of Qa. The principle of needle reversal also can be used ...
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Hypoxemia during hemodialysis: Effects of different membranes and dialysate compositions. Arterial oxygen tension (Pa02) and white blood cell (WBC) count decrease during hemodialysis (HD) when certain types of membranes are used. Two mechanisms, impaired gas exchange due to intrapulmonary leucostasis and alveolar hypoventilation, have been proposed. To gain more insight into their respective ro...
متن کاملProtein intake during hemodialysis maintains a positive whole body protein balance in chronic hemodialysis patients.
Protein energy malnutrition is present in 18 to 56% of hemodialysis patients. Because hemodialysis has been regarded as a catabolic event, we studied whether consumption of a protein- and energy-enriched meal improves the whole body protein balance during dialysis in chronic hemodialysis (CHD) patients. Patients were studied on a single day between dialysis (HD- protocol) in the morning while f...
متن کاملLow dialysate [K+] decreases efficiency of hemodialysis and increases urea rebound.
In a previous study, it was reported that hemodialysis with dialysate [K+] (KD) of 1.0 or 2.0 mmol/L caused an increase in BP shortly after completion of treatment due to arteriolar constriction. With this background, it was hypothesized that a low KD might decrease dialysis efficiency by a similar mechanism. To evaluate this hypothesis, paired observations of two consecutive 3-h treatments, wi...
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ژورنال
عنوان ژورنال: Journal of the American Society of Nephrology
سال: 1998
ISSN: 1046-6673,1533-3450
DOI: 10.1681/asn.v9112118