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Pre CVVH
Treatment parameters
CVVH (adults)
Blood flow
Ultrafiltration
UF goal
Cont. heparin adm.
Substituate
Temperature
Fig.: CVVH flow diagram
8
Fresenius Medical Care multiFiltrate IFU-EN-UK 15A-2015
The infusion of the substituate in predilution largely avoids a
haemoconcentration. The disadvantage of this procedure, however, is
that all toxins in the blood are diluted which, in turn, leads to fewer toxins
being removed per litre of ultrafiltrate than in Post CVVH. If the same
volume of substituate is used, predilution is less effective than
postdilution. The disadvantage caused by this dilution can be reduced
by increasing the blood flow rate. It is also possible to select another
CRRT treatment as an alternative.
7
6
Min.
Max.
10
500
Off / 10
1800
Off / 50
10,000
Off / 0.1
25
600
4800
Off / 35
39
P
5
2
Chapter 7: Functional description
Resolution
10
10
50
0.1
50
0.5
13
14
12
11
9
10
3
4
P
1
Unit
ml/min
ml/h
ml
ml/h
ml/h
°C
15
7-3
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