Operator's Manual

6.3 Pulse oximetry
Tempus Pro User/Operator Manual - 41-2001EN-00 – Page 101
Sensitivity mode
The Pulse Oximeter is equipped with 3 different sensitivity modes. Each mode allows the clinician to change
the sensitivity settings of the device 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.
Large pleth waveform
Large pleth waveform changes the display to show a bigger waveform. This will remove the Rainbow
measurement parameters from the waveform section of the home screen and move them to the tile on the
right. The parameters will then rotate every 5 seconds.
FastSAT
FastSAT enables rapid tracking of arterial oxygen saturation changes. Arterial oxygen saturation data is
averaged using pulse oximeter averaging algorithms to smooth the trend. When FastSAT is “On” the
averaging algorithm evaluates all the saturation values providing an averaged saturation value that is a
better representation of the patient’s current oxygenation status. With FastSat, the averaging time is
dependent on the input signal. For the 2 and 4 second settings the averaging time may range from 2-4 and
4-6 seconds, respectively.
Large Pleth
Waveform
view
Large Pleth Waveform section of the home screen
Rotating
Parameter
section