Covidien Nellcor OxiMax N-600x, Operator'S Manual

Page: 123 / 146

Oximeter Features
Operator’s Manual
117
variables such as pH, temperature, the partial pressure of carbon dioxide (PCO
2
), and
2,3-DPG, that shift the relationship between PO
2
and SpO
2
.
Figure 102. Oxyhemoglobin Dissociation Curve
Oximeter Features
SatSeconds™ Alarm Management Feature
The oximeter monitors hemoglobin saturation with oxygen in the blood. With
traditional alarm management, upper and lower alarm limits are set for monitoring
SpO
2
levels. When the SpO
2
fluctuates near an alarm limit, the alarm sounds each
time it violates an alarm limit. SatSeconds monitors both degree and duration of
desaturation as an index of desaturation severity. Thus, the SatSeconds feature
distinguishes clinically significant events from minor and brief SpO
2
limit violations
that result in nuisance alarms.
Set upper and lower alarm limits using traditional alarm management methods.
Then, use SatSeconds alarm management to defer the audible alarm for the
specified period, even if the SpO
2
is below the selected lower alarm limit. Refer to
Using the SatSeconds™ Alarm Management Feature , page 58, for managing
SatSeconds alarms.
Pulse Rate Delay Alarm Management Feature
The oximeter also monitors pulse rate by determining the number of pleth waves
over unit time. With traditional alarm management, upper and lower alarm limits are
set for monitoring pulse rate. When the pulse rate fluctuates near an alarm limit, the
alarm sounds each time it violates an alarm limit. The Pulse Rate Delay feature allows
a period of threshold violation before the pulse rate alarm sounds. Thus, the Pulse