Principles of operation
162 Instructions for use Carina SW 3.2n
Volume measurement
Breathing circuit with leakage valve
The displayed values for VTi and MVi show the vol-
ume applied to the patient's lung. The displayed
values are calculated over several spontaneous
breaths.
VTi, MVi are derived from the total applied volume,
less the total leakage through the leakage valve
and patient system. The leakage is displayed as
MVleak.
Breathing circuit with expiratory valve
The displayed values for VT and MV show the total
volume applied by the device.
CAUTION
Before making clinical decisions based on the dis-
played values VTi and MVi, it is important to en-
sure that the measurement is not affected by leak-
ages.
NOTE
Carina cannot automatically compensate for hose
compliance.
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