Respironics 920M Operator's Manual download pdf (Page 21)

Detailed Operation 15

Displays and Indicators

SpO

Display

The SpO

display is the upper numeric display. (Identified by the %SpO

symbol; see Figure 2 on page 4.) This 3-digit light-emitting diode (LED)

display shows the current oxygen saturation percentage.

Pulse Rate Display

The pulse rate display is the lower numeric display. (Identified by the ♥

symbol; see Figure 2 on page 4.) This 3-digit LED display shows the pulse

rate in pulses per minute.

Pulse Quality Indicator

The pulse quality indicator, a tricolor LED, blinks once for each detected

pulse. (Identified by the symbol; see Figure 2 on page 4.) The pulse quality

indicator changes color to indicate changes in the pulse waveform signal that

may affect the SpO

data.

The pulse quality indicator may blink one of three colors: green, yellow, or

red. These colors are similar to the colors of a stoplight:

• Green indicates that the pulse waveform signal is of good quality and the

SpO

and pulse rate data are accurate.

• Yellow indicates that the pulse waveform amplitude is marginal or that the

pulse oximeter has detected artifact. Although the SpO

and pulse rate data

may be acceptable, corrective measures should be considered if the

indicator continues to blink yellow frequently. To improve the signal

quality, try repositioning the sensor, try a different sensor type, eliminate

patient movement, or improve circulation at the site by massaging the area.

• Red indicates that the pulse waveform amplitude is inadequate. While the

pulse quality indicator is red, SpO

and pulse rate values are frozen (not

updated). After approximately 20 seconds, the values are replaced with

dashes indicating that SpO

and pulse rate measurements are not possible.

CAUTION: The 920M PLUS might misinterpret motion as good

pulse quality. Minimize patient motion as much as

possible.

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Respironics 920M Operator's Manual Page 21