Weinmann COMBIBAG - Guide Values for Ventilation

12 Operating instructions
EN
• Relief valve setting 20 mbar (2 kPa
(≈ 20 cmH
2
O)): on closing the inhalation pas-
sage with the ball of the left thumb and squeez-
ing the bag with the right hand, air flows
through the relief valve openings.
• Relief valve setting 60 mbar (6 kPa (≈
60 cmH
2
O)) : on closing the inhalation passage
with the ball of the left thumb, the bag can only
be squeezed under considerable pressure and air
escapes more slowly and quietly than at the
20 mbar (2 kPa (≈ 20 cmH
2
O)) pressure setting.
4.3 Guide values for ventilation
When carrying out artificial ventilation with resuscita-
tors without adjustable frequency and tidal volume
(unless additional measuring instruments such as
pressure gauges or volumeters are employed), suc-
cess of the procedure can only be judged from indi-
rect signs, such as clearly visible thorax movements,
disappearance of cyanosis, reduction in pallor, etc.
Because of this, certain guide values should be noted
after commencing resuscitation, in which, as a rule,
some degree of hyperventilation is desirable. This is
important since, with prolonged resuscitation, inade-
quate ventilation (hypoventilation) leads to consider-
able damage and ventilation with too high frequency
and excessive tidal volume (hyperventilation) also has
serious drawbacks.
Cycles per min. Tidal volume in ml
– Children (from a body
weight of 10 kg)
– Childgen, 5 years old
– Childgen, 10 years old
–Juveniles
– Adults
40 - 60
20 - 35
18 - 25
16 - 20
12 - 16
20 - 35
150 - 200
300 - 400
300 - 500
500 - 1000