Spo2 Measurement - Riester RVS-100 Manual Del Usuario

5.1.8 Manometer Test
When the NIBP value measured is inaccurate, you can select [SET-
TINGS] > [ADVANCED] input password > [Factory], after enter
the correct password to go to [Factory] to select the following tests:
Manometer test , air leakage test ,over press test, NIBP Calibration.
After the selection, you can actually conduct these tests.
Note: Only qualified clinical professionals or specified
personnel of the manufacturer can perform the above
operation.

5.2 SpO2 measurement

5.2.1 Introduction
The measurement of oxygen saturation of arterial blood (also
known as pulse oxygen saturation, or SpO2) adopts the principles
of light spectra and volume tracing. The LED emits lights with two
specific wavelengths, which are selectively absorbed by oxygenated
hemoglobin and deoxyhemoglobin. The optical receptor measures
the changes in the light intensity after the light passes the capillary
network and estimates the ratio of oxygenated hemoglobin and the
total hemoglobin.
Wavelengths of the light emitted by the pulse oximeter probe are
nominally 660nm for red LED and 940nm for infrared LED.
5.2.2 Safety Information
Warnings:
• Only use SpO2 sensors specified in this manual. Follow
the SpO2 sensor's instructions for use and adhere to all
warnings and cautions.
• When using Covidien Nellcor SpO2 sensors/cables, please
use the enclosed Covidien Nellcor SpO2 sensors/cables
instruction manuals.
• When a trend toward patient deoxygenation is indicated,
blood samples should be analyzed by a laboratory co-oxi-
meter to completely understand the patient's conditions.
• Do not use the monitor and the SpO2 sensor during ma-
gnetic resonance imaging (MRI). Induced current could
cause burns.
• Prolonged continuous monitoring may increase the risk of
unexpected changes in skin characteristics, such as irri-
tation, reddening, blistering or burns. Inspect the sensor
site every two hours and move the sensor if the skin quality
changes. For neonates, or patients with poor peripheral
blood circulation or sensitive skin, inspect the sensor site
more frequently.
• Check the SpO2 sensor and its package for any sign of da-
mage before use. Do not use the sensor if any damage is
detected. Contact the manufacturer.
• Use only SpO2 sensors and extension cables approved
for use with this monitor. Do not use damaged sensors or
cables. Incompatible or damaged sensors or cables could
pose patient burn risk.
• Do not soak the sensor in water. Avoid contact with
moisture to prevent damage.
• When disposing of any SpO2 probes, please observe all
local, state, and federal regulations that relate to the dis-
posal of this product or similar products.
• Pulse rate measurement is based on the optical detection
of a peripheral flow pulse and therefore may not detect
49
certain arrhythmias. The pulse oximeter should not be
used as a replacement or substitute for ECG-based ar-
rhythmia analysis.
Caution: If it is necessary to clip the SpO2 device to the
patient, always clip the cable, not the sensor itself. Never
use force to pull the sensor cable.
Note:
• During SpO2 measurement, a pleth wave will show in the
SpO2 display area. This wave does not equal the intensity
of the PR signal.
• The production divergence and drive current of LED influ-
ence the range of the peak wavelength of the emitted light
by the oxygen probe.
• The monitor does not provide an automatic self-examina-
tion alarm signal. The operator must use a SpO2 simulator
for self-test of the device.
• Functional test cannot be used to assess the accuracy of
the monitor.
• When the displayed SpO2 or pulse rate value is potentially
incorrect, the system will show a "?" in the value position.
5.2.3 SpO2 Monitoring Procedure
1. Selecting SpO2 Sensor: Select a SpO2 sensor that is appropri-
ate for the patient category, weight and application site.
2. Connecting SpO2 Sensor: Plug the SpO2 sensor cable into the
SpO2 connector on the device. (See device diagram in Chapter
1.4.)
3. Applying SpO2 Sensor: Clean the application site, remove any
colored nail polish, and apply the sensor to the patient. Typi-
cally, the sensor should be used on the index, middle or ring
finger. The fingernail should face the side with the red light.
Warnings:
• Do not use the SpO2 sensor on the same limb being used
for NIBP measurement. This may result in inaccurate
SpO2 reading due to blocked blood flow during cuff infla-
tion.
• Do not measureSpO2 on a finger painted with nail polish.
This may result in unreliable measurements.
• When using a finger sensor, make sure the fingernail
faces the red light.
• If "Weak Signal" is indicated, check the patient's condition
and move the probe to another position to try to obtain a
better signal.
5.2.4 SpO2 Display
SpO unit
2
%SpO value
2
5.2.5 Setting SpO2
1. Select [SETTING] > [ADVANCED] > [PARAMETERS] >
[SPO2] > [Default response] to choose the response to
be[Normal: 16 seconds] or [Fast : 4 seconds].
2. Select [SETTING] > [ADVANCED] > [PARAMETERS] >
[SPO2] > [Sweep speed] to setup the speed to be [6.25mm/s]
or [25 mm/s].
5.2.6 SpO2 Measurement Limitations
If you doubt the SpO2 measurements, check the patient and move
the probe to a different finger. The following factors may influence
the accuracy of measurements:
• Exposure to excessive illumination, such as surgical lamps
(especially ones with a xenon light source), bilirubin lamps,
fluorescent lights, infrared heating lamps or direct sunlight
(exposure to excessive illumination can be corrected by cove-
ring the sensor with a dark or opaque material);
• Electromagnetic interference, such as from an MRI device;
• Excessive patient movement;
• Intravascular dyes such as indocyanine green or methylene
blue;
• Significant levels of dysfunctional hemoglobins (such ascar-
boxyhemoglobin or methemoglobin);
• Incorrect sensor application or use;
Upper alarm
limit
Lower alarm limit
Pleth waveform