Mindray BeneHeart D2, Руководство оператора

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Defibrillator/Monitor Operator’s Manual 12 - 1
12
Monitoring SpO
2
12.1 SpO
2
Introduction
SpO
2
monitoring is a non-invasive technique used to measure the amount of oxygenated haemoglobin and
pulse rate by measuring the absorption of selected wavelengths of light. The light generated in the probe passes
through the tissue and is converted into electrical signals by the photodetector in the probe. The SpO
2
module
processes the electrical signal and displays a waveform and digital values for SpO
2
and pulse rate.
This equipment is calibrated to display functional oxygen saturation.
SpO
2
monitoring is intended for adult, pediatric and neonatal patients.
12.2 Identifying SpO
2
Modules
The equipment can be configured with any of the following SpO
2
modules.
■
Mindray SpO
2
: the connector is blue without any no logo.
■ Masimo SpO
2
module: the connector is purple with a logo of Masimo SET.
■
Nellcor SpO
2
: the connector is grey with a logo of Nellcor.
12.3 SpO
2
Safety Information
WARNING
•
When a trend toward patient deoxygenation is indicated, blood samples should be analyzed by a
laboratory co-oximeter to completely understand the patient’s condition.
•
Do not use SpO
2
sensors during magnetic resonance imaging (MRI). Induced current could
potentially cause burns.
•
Prolonged continuous monitoring may increase the risk of undesirable changes in skin
characteristics, such as irritation, reddening, blistering or burns. Inspect the sensor site every two
hours and move the sensor if the skin quality changes. Change the application site every four hours.
For neonates or patients with poor peripheral blood circulation or sensitive skin, inspect the sensor
site more frequently.
•
If the sensor is too tight because the application site is too large or becomes too large due to edema,
excessive pressure for prolonged periods may result in venous congestion distal from the
application site, leading to interstitial edema and tissue ischemia.
•
When patients are undergoing photodynamic therapy they may be sensitive to light sources. Pulse
oximetry may be used only under careful clinical supervision for short time periods to minimize
interference with photodynamic therapy.
•
Setting alarm limits to extreme values may cause the alarm system to become ineffective. For
example, high oxygen levels may predispose a premature infant to retrolental fibroplasia. If this is a
consideration, do not set the high alarm limit to 100%, which is equivalent to switching off the
alarm.
•
SpO
2
is empirically calibrated in healthy adult volunteers with normal levels of carboxyhemoglobin
(COHb) and methemoglobin (MetHb).
•
To protect from electric shock, always remove the sensor and completely disconnect the pulse
oximeter before bathing the patient.
•
The pulse oximeter is not an apnea monitor.
•
The pulse oximeter should not be used for arrhythmia analysis.