Cardinal Health Alaris 8000 Series, Directions For Use Manual

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General Information
5-23
Alaris
®
System Directions for Use
EtCO
2
Module Section
Measurement Accuracy (Continued)
Loss of a respiratory rate signal can occur in any of the
following situations:
• Incorrect disposable application or use.
• Microstream
®
Disposable disconnected or not securely
connected to
E
t
CO
2
Module.
• Airway connection clogged, twisted, or leaking.
• Patient not breathing.
• Placement too close to electrosurgery equipment.
Waveforms can be used to troubleshoot problems with equipment or monitor configuration, as well as
to monitor a patient’s clinical status. The following are examples of common problems identifiable
through waveform analysis. These are examples only and do not represent all potential abnormal
waveforms. Abnormal waveforms are not always associated with alarms.
Waveform Possible Causes
Hypoventilation
• overmedication
Waveform Analysis
The
E
t
CO
2
Module provides the option to display
E
t
CO
2
readings as a waveform. The following is an
example of a normal waveform (normal ventilation,
35
-
45
mmHg).
€
A - B: baseline period of no
CO
2
; end of inhalation
B - C: rapid rise in
CO
2
C - D: alveolar plateau
D: end of expiration; end tidal
CO
2
(
E
t
CO
2
)
D - E: inhalation
D D D D
• respiratory distress
Hyperventilation