Oridion Capnostream 20p, Руководство оператора

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Portable Bedside Capnograph/Pulse Oximeter 63
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Chapter 7
Integrated Pulmonary Index™
Introduction
Warnings
IPI Display
IPI Options
Introduction
The Integrated Pulmonary Index™ (henceforth referred to as IPI) is a numerical value which integrates four
major parameters measured by Capnostream in order to provide a simple indication of the patient’s overall
ventilatory status. The integrated parameters are EtCO
2
, RR, SpO
2
, and PR. Only these four parameters are used
to calculate IPI; other parameters are not taken into account.
IPI is calculated using the current values of these four parameters and their interactions, based on known clinical
data. IPI can thus provide an early indication of a change in ventilatory status which may not be shown by the
current value of any of these four parameters individually. The IPI is designed to provide additional information
regarding patient status, possibly before EtCO
2
, RR, SpO
2
, or PR values reach levels of clinical concern.
The IPI trend graph (seen on the Capnostream home screen) is particularly valuable, as it displays the patient
ventilatory status trend in one easy-to-use graph, and thus can alert caregivers to changes in patient status. The
importance of the IPI, thus, lies not only in its absolute numeric number, but also in its relationship to previous
values, so that a graph can display an upward or downward trend in patient status and indicate to the caregiver
that attention or intervention may be required.
Figure 27 - IPI Trend Graph
A technical note containing details regarding the IPI algorithm is available from Oridion.
Since the index uses data from the monitoring of both CO
2
and SpO
2
, it will only be available when both
parameters are available.
The range of the index is 1-10; index values should be understood as seen in the table below.
Index Range Patient Status
10 Normal
8-9 Within normal range
7 Close to normal range; requires attention
5-6
Requires attention
and
may require intervention
3-4 Requires intervention
1-2 Requires immediate intervention
Note: The interpretation of the patient's IPI score may change in different clinical environments. For example,
patients with specific respiratory difficulties (in contrast to normally healthy patients who are being