iVent201 Operator's Manual
143
To return to the Main Window, turn the control knob to select
“Close,” then press the knob.
NOTE: When using active humidification it is recommended
that the purge frequency be set to one minute intervals.
4.3.7 Pulse Oximetery
Pulse oximeter is a simple non-invasive method of monitoring
the percentage of hemoglobin (Hb) that is saturated with
oxygen, which, put simply, is the amount oxygen in the blood.
The pulse oximeter is a sensor, which is placed on the patient
fingertip, earlobe, or the big toe, and is linked to a
computerized unit. The unit displays the oxygen saturation
percent, a calculated heart rate, and a graphical display of the
blood flow past the probe (plethysmograph).
A pulse oximeter can be connected to the iVent
201
ventilator
allowing the operator to continuously monitor patient’s
oxygenation saturation on the iVent screen.
Caution
The accuracy of the SpO2 measurement may be affected
if the total cable length (including extension cables) is
greater than 3 meters.
The pulse oximeter is designed to determine the
percentage of arterieal oxygen saturation of functional
hemoglobin. Significant levels of dysfunctional
hemoglobin, such as methemoglobin, might affect the
accuracy of the measurement.
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