Welch Allyn 901061 Propaq LT Vital Signs Monitor - User Manual - Manual (Page 65)

Directions for Use Standalone monitoring 61
1. Inspect the SpO
2
cable. Replace it if it shows any signs of wear, breakage, or fraying.
2. Plug the cable into the sensor and the monitor.
Each SpO
2
sensor is intended for application to a specific site and site size on the
patient. To obtain optimal performance, use the right sensor and apply it as instructed
by the sensor manufacturer.
3. Clean the application site. Remove anything, such as nail polish, that could interfere
with the operation of the sensor.
4. Attach the SpO
2
sensor to the patient according to the manufacturer’s directions for
use, observing all warnings and cautions.
5. Confirm that the monitor displays SpO
2
data within a few seconds of being
connected to the patient.
• If ambient light is too bright, shield the sensor site with opaque material. Failure
to do so can result in inaccurate measurements. Light sources that can affect
performance include the following:
- surgical lights (especially those with a xenon light source)
- bilirubin lamps
- fluorescent lights
- infrared heating lamps
- direct sunlight.
• To help reduce unnecessary SpO
2
alarms when NIBP and SpO
2
are monitored
simultaneously, place the NIBP cuff and the SpO
2
sensor on different limbs.
• Do not attach the SpO
2
sensor on the same limb as an arterial catheter or
intravascular line.
• The pulse signal can disappear if any of the following conditions exists:
- the sensor is too tight
- ambient light is too bright
- an NIBP cuff is inflated on the same limb as the sensor
- arterial occlusion occurs near the sensor
WARNING Interfering substances: Carboxyhemoglobin can erroneously
increase readings; the level of increase is approximately equal to the amount of
carboxyhemoglobin present. Methemoglobin and other dysfunctional
hemoglobins can also cause erroneous readings. Further assessment beyond
pulse oximetry is recommended. Intravascular dyes, or any substances
containing dyes, that change usual arterial pigmentation can cause erroneous
readings. Darkly pigmented skin can adversely affect SpO
2
readings.
WARNING For a premature infant, high oxygen levels might predispose the
infant to develop retinopathy. Therefore, the upper alarm limit for oxygen
saturation must be carefully selected in accord with accepted clinical standards
and considering the accuracy range of the monitor.
Caution If liquid gets into the SpO
2
connector cavity, discontinue SpO
2
monitoring until the liquid is removed and the cavity is dry.
Note In some newer monitors, the pitch of the heart tone rises and falls as oxygen
saturation increases and decreases. In other monitors, the pitch of the heart tone
does not change.