Principle Of Operation - Cardinal Health Alaris 8000 Series Directions For Use Manual

Waveform
Partial Airway Obstruction
Hypoventilation with Shallow
Breathing
No Breath Detected
NOTE:
In the event the
range, the top of the waveform will be clipped. Numerical
t values continue to be displayed on both the
E CO
2
Module and PC Unit.
The t Module uses Oridion's patented Microstream
E CO
2
nondispersive infrared (
measure the amount of
of present at the end of exhalation (
CO
2
inhalation ( i ), and the Respiratory Rate. The
F CO
2
Module is a side stream capnograph.
The Microstream Disposables deliver a sample of the inhaled
®
and exhaled gases from the ventilator disposable or directly
from the patient (via an oral/nasal cannula) into the monitor for
measurement. Moisture and patient secretions are
CO
2
extracted from the sample by the Microstream
while maintaining the shape of the
5-24
General Information
Waveform Analysis (Continued)
Possible Causes
• relaxation of upper airway
• head position
• medication effect
• low tidal volume
• apnea
• very shallow breathing
• overmedication
• displaced cannula
t value is above the waveform display
E CO
2

Principle of Operation

) spectroscopy to continuously
NDIR
during every breath, the amount
CO
2
E
waveform.
CO
2
t
E CO
2
®
t ) and during
CO
2
t
E CO
2
inline filter
®
Alaris System Directions for Use
®
EtCO Module Section
2