Innokas Yhtyma Oy VC150 Manual Do Utilizador
9-28
VC150 Vital Signs Monitor
KO00065K
Nellcor SpO
2
: Nellcor SpO
2
default settings
SatSeconds
alarm management
parameter
With traditional alarm management, upper and lower alarm limits are set for
monitoring SpO
monitoring SpO
2
. During monitoring, as soon as an alarm limit is violated by as little as
one percentage point, an audible alarm immediately sounds. When the percent SpO
2
fluctuates near an alarm limit, the alarm sounds each time the limit is violated.
To prevent these nuisance alarms, the SatSeconds alarm management feature
controls the time that the percent SpO
controls the time that the percent SpO
2
level may fall outside the alarm limits before
an audible alarm sounds. Choose either Off, 10, 25, 50, or 100 seconds. SatSeconds is
always 100 when SPD™ is active. The SatSeconds number is calculated by taking the
amount the current saturation value is out of limits and multiplying it by the amount of
time it has been out of those limits. For example, at a SatSeconds setting of 50, an
alarm goes off if the patient is:
• 5 points below the threshold × 10 seconds
• 10 points below the threshold × 5 seconds
always 100 when SPD™ is active. The SatSeconds number is calculated by taking the
amount the current saturation value is out of limits and multiplying it by the amount of
time it has been out of those limits. For example, at a SatSeconds setting of 50, an
alarm goes off if the patient is:
• 5 points below the threshold × 10 seconds
• 10 points below the threshold × 5 seconds
The SatSeconds “safety net” is for patients with saturation levels frequently falling
below the limit, but not staying below the limit long enough for the SatSeconds time
setting to be reached. If the patient has had three or more SpO
below the limit, but not staying below the limit long enough for the SatSeconds time
setting to be reached. If the patient has had three or more SpO
2
threshold violations
within a 60-second period, the alarm will sound whether or not the patient has
exceeded the SatSeconds setting.
exceeded the SatSeconds setting.
For mild or brief SpO
2
limit violations, use the Sat-Seconds parameter to reduce
nuisance alarms. With the SatSeconds parameter enabled, the monitoring screen
includes a circle icon and its setting. The SatSeconds alarm limit value appears just
below the circle icon. When the SatSeconds parameter is enabled, the circle icon fills
in the clockwise direction as the alarm management system detects SpO
includes a circle icon and its setting. The SatSeconds alarm limit value appears just
below the circle icon. When the SatSeconds parameter is enabled, the circle icon fills
in the clockwise direction as the alarm management system detects SpO
2
readings
outside of the limit setting. The circle icon empties in counterclockwise direction when
SpO
SpO
2
readings are within limits. When the icon fills completely, a medium-priority
alarm sounds.
The SatSeconds feature is indicated by a dashed circle icon with the current limit
value below the icon. The icon fills clockwise in one-sixteenth increments by the ratio
of current SatSeconds value to the current SpO
value below the icon. The icon fills clockwise in one-sixteenth increments by the ratio
of current SatSeconds value to the current SpO
2
alarm limit.
Nellcor feature
Description