Dräger Fabius Series

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9.6 Attachment 6: Fresh gas settings
[L/min]
Total FG-Flow 2.5
Total FG-Flow 5
Total FG-Flow 10
Total FG-Flow 15
Desired FG-O
2
-
Concentration
FG-Flow
O
2
FG-Flow
AIR
FG-Flow
O
2
FG-Flow
AIR
FG-Flow
O
2
FG-Flow
AIR
FG-Flow
O
2
FG-Flow
AIR
21%
0
2.5
0
5
0
10
0
15
25%
0.15
2.35
0.3
4.7
0.6
9.4
0.9
14.1
30%
0.3
2.2
0.6
4.4
1.2
8.8
1.8
13.2
35%
0.45
2.05
0.9
4.1
1.8
8.2
2.7
12.3
40%
0.6
1.9
1.2
3.8
2.4
7.6
3.6
11.4
50%
0.95
1.55
1.9
3.1
3.8
6.2
5.7
9.3
60%
1.25
1.25
2.5
2.5
5
5
7.5
7.5
80%
1.85
0.65
3.7
1.3
7.4
2.6
11.1
3.9
100%
2.5
0
5
0
10
0
15
0
Example:
Patient with ARDS, ideal bodyweight (IBW) 80 kg, protective tidal volume 6 ml/kgBW
Fresh Gas O2 Concentration 40%, Fresh Gas Flow 150% of Minute Volume
Expected Minute Volume = IBW x 6 ml/kg x Respiratory Rate
Expected Minute Volume = 80 kg x 6 ml/kg x 14/min = 480 ml x 14 /min = 6.7 L/min
Fresh Gas Flow = Expected Minute Volume x 150%
Fresh Gas Flow = 6.7 L/min x 1.5 = 10.1 L/min  rounded to 10 L/min
Settings on devices with electronic gas mixer:
Fresh Gas Flow = 10 L/min
Fresh Gas O2 Concentration = 40%
Settings on devices with mechanic gas mixer:
O2-Flow = 2.4 L/min
AIR-Flow = 7.6 L/min