User's Manual
Rad-87 Pulse CO-Oximeter Operator’s Manual
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4
Operation
Sensitivity
The Rad-87 Pulse CO-Oximeter is equipped with 3 different SpO
2
sensitivity modes. Each
mode allows the clinician to change the SpO
2
sensitivity settings of the instrument to meet the
increased demands of the patient’s physiological condition or enable it to work during periods of
low perfusion and/or motion. They are as follows:
■ Normal Sensitivity (NORM) – This is the recommended mode for patients that are
experiencing some compromise in blood flow or perfusion. It is advisable for care areas
where patients are observed frequently, such as an intensive care unit (ICU).
■ Adaptive Probe Off Detection (APOD) – This is the recommended start-up monitoring
mode for most patients with acceptable perfusion or where a more robust sensor
off detection is desired. It is the suggested mode for care areas where patients are
not visually monitored continuously. This mode delivers enhanced protection against
erroneous pulse rate and arterial oxygen saturation readings when a sensor becomes
inadvertently detached from a patient.
■ Maximum Sensitivity (MAX) - This mode is recommended for patients with low perfusion
or when the low perfusion or low signal quality message is displayed on the screen in
APOD or normal sensitivity mode. This mode is not recommended for care areas where
patients are not monitored visually, such as general wards. It is designed to interpret
and display data at the measuring site when the signal may be weak due to decreased
perfusion. When a sensor becomes detached from a patient, it will have compromised
protection against erroneous pulse rate and arterial saturation readings. Also, after a
power off and on cycle, the sensitivity will change from the MAX to the factory default or
user configured default setting of APOD or NORM.
CAUTION:
• When using the Maximum Sensitivity setting, the performance of the sensor off
detection may be compromised. If the instrument is in this setting and the sensor
becomes dislodged from the patient, the potential for false readings may occur due to
environmental ‘noise’ such as light, vibration and excessive air movement.