CareFusion AVEA Operating Instructions Manual page 229

AVEA ventilator systems
Display Description
C
The ratio of the tidal volume (exhaled) to the delta
LUNG
transpulmonary pressure. The delta
transpulmonary pressure is the difference between
the airway plateau pressure (during an inspiratory
pause) and esophageal pressure (at the time the
airway plateau pressure is measured) minus the
difference between the airway and esophageal
baseline pressures. Requires an inspiratory hold
and esophageal balloon.
C / C The ratio of the dynamic compliance during the last
20
20% of inspiration (C
compliance (C).
Display Description
R The total resistance during the inspiratory phase of
RS
a breath. Respiratory System Resistance is the
ratio of the airway pressure differential (peak –
plateau) to the inspiratory flow 12 ms prior to the
end of inspiration. Requires an inspiratory hold.
R
The Peak Expiratory Resistance (R
PEAK
as the resistance at the time of the Peak Expiratory
Flow (PEFR).
R The airway resistance between the wye of the
IMP
patient circuit and the tracheal sensor. Requires an
inspiratory hold and tracheal catheter.
R The ratio of the tracheal pressure differential (peak
LUNG
– plateau) to the inspiratory flow 12 ms prior to the
end of inspiration. Requires an inspiratory hold and
tracheal catheter.
dP The difference between peak airway pressure
AW
(P
dP The difference between peak esophageal pressure
ES
(P
(PEEP
AutoPEEP
The airway pressure at the end of an expiratory
hold maneuver. Requires a passive patient.
dAutoPEEP
The difference between airway pressure at the end
of an expiratory hold maneuver and the airway
pressure at the start of the next scheduled breath
after the expiratory hold maneuver. Requires a
passive patient.
AutoPEEP
The difference between esophageal pressure
ES
measured at the end of exhalation (PEEP
the esophageal pressure measured at the start of a
patient-initiated breath (P
of the ventilator's demand system. The sensitivity
of the ventilator's demand system is the difference
between the baseline airway pressure (PEEP
and the airway pressure when the patient initiates a
breath (P
Ptp Plat Transpulmonary pressure during an inspiratory
hold, which is the difference between the airway
plateau pressure (P
esophageal pressure. Requires an inspiratory hold
and esophageal balloon.
L2786 Rev. M
Appendix D: Monitor Ranges and Accuracies
) to the total dynamic
20
) and baseline airway pressure (PEEP
PEAK AW
) and baseline esophageal pressure
PEAK ES
).
ES
) and the sensitivity
ES start
). Requires an esophageal balloon.
AW start
) and the corresponding
PLAT AW
Range
0 to 300
mL/cmH O
2
0.00 to 5.00
Range
0 to 100
cmH O/L/sec
2
), is defined 0.0 to 100.0
PEAK
cmH O/L/sec
2
0.0 to 100.0
cmH O/L/sec
2
0.0 to 100.0
cmH O/L/sec
2
−120 to 120
).
cmH O
AW
2
−120 to 120
cmH O
2
0 to 50 cmH
0 to 50 cmH
0 to 50 cmH
) minus
ES
)
AW
−60 to 120
cmH O
2
Accuracy
+ 10%
+ 10%
Accuracy
+ 10%
+ 10%
+ 10%
+ 10%
+ 2 cm H O or + 5% whichever is greater
2
+ 2 cm H O or + 5% whichever is greater
2
O + 2 cm H O or + 5% whichever is greater
2 2
O + 2 cm H O or + 5% whichever is greater
2 2
O + 2 cm H O or + 5% whichever is greater
2 2
+ 2 cm H O or + 5% whichever is greater
2
215