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How Trends are Accumulated
Welch Allyn 104 Propaq Encore Reference Guide
How Trends are Accumulated
For each of the four continuous trends, numerics are sampled every two minutes to a
maximum of 150 samples (up to five hours). When the maximum is reached, the trending
continues but the older data is no longer stored. The readings are displayed in descending
order, most recent first.
The following is programmable: which trend window comes up first. The NIBP trend
window is the factory default.
To clear trend data before connecting a new patient, the monitor power must be cycled. This
will prevent the trend data of a previous patient from being attributed to the new patient.
NIBP Trends
A maximum of 128 NIBP readings are collected (up to 8 hours). NIBP is not measured
continuously like other vital sign parameters. The numerics on this trend are captured at the
time of the NIBP reading.
If an error number (ERR# x) is listed in an NIBP TREND printout or display, it indicates that
an NIBP equipment alert occurred. See page 62 for NIBP alert error numbers and definitions.
Displaying Trends
Displayed trends show the last five hours of data. Trends are displayed if you are at the main
menu and have only one waveform turned on in the wave selection window. Trends are also
displayed when you press the
TRENDS button in the first Setup Menu.
mmH
g
MCO
2 BR
S
p
O
2
35/ 18
( 85)
35
12
92
PRINT OXYCRGNXT TRND
NIBP TREND
TIME BRSYS/DIA-MEANHR/PR
BPM
Br/MHH:MM
10:01
9:46
9:31
9:20
98
SRCH
OFF
100
101
88
93
91
11
10
5
11
139/ 74 106
142/ 83 110
145/ 87 112
126/ 85 91
S
p
O2
% mmH
g
PA
This symbol indicates that the NIBP reading was taken
in the presence of high motion artifact while monitoring
ECG. Artifact can affect accuracy. To help reduce
artifact, see page 59.
When the SEARCH message appears in an
NIBP TREND display or printout, it indicates
that the monitor was not able to complete an
NIBP measurement during that time period.