Mindray BeneVision N Series

31 - 2 BeneVision N Series Patient Monitor Operator’s Manual
31.2 rSO2 Safety Information
CAUTION
• rSO
2
monitoring is intended for use in individuals greater than 2.5 kg at risk for reduced-flow or no-
flow ischemic states.
• Do not use the rSO
2
value as the sole basis for making decisions regarding diagnosis or therapy
because the rSO
2
values represent a small volume of tissue beneath the sensor and may not reflect
oxygenation disturbances that occur elsewhere.
• Use only recommended or provided accessories. Use any other sensor will compromise accuracy.
• Use of an electrosurgical instrument in the vicinity of the monitor may interfere with the signal and
result in inaccurate rSO
2
measurement.
NOTE
• Environments with excessive ambient light such as bright sunlight or strong operating room
lighting may require loosely covering the area of the sensor with an opaque drape.
31.3 rSO
2
Measurement Limitations
If present, the following may cause inaccurate readings:
■ Cardiogreen, indigo carmine or other intravascular dyes
■ Carboxyhemoglobin or other dyshemoglobins
■ Hemoglobinopathies
■ Conjugated hyperbilirubinemia (direct)
■ Myoglobin (Mb) in muscle tissues
31.4 rSO
2
Display
Each rSO
2
numeric area displays one rSO
2
channel, which is shown as below:
(7)
(6) (5)
(1)
(2) (3)
(4)
(8)
(9)
(1) rSO
2
label (2) Channel indicator
(3) Baseline (BL) (4) Signal Strength Indicator (SSI)
(5) Change percentage of the rSO
2
realtime value and baseline (If the rSO
2
value is greater than or equal to the
baseline, the arrowhead is upward; If the rSO
2
value is smaller than the baseline, the arrowhead is downward)