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of vascular contracting drug, the SpO2 waveform (PLETH) will decrease.
In this case, the measurement will be more sensitive to interference.
2. For those with a substantial amount of staining dilution drug (such as
methylene blue, indigo green and acid indigo blue), or carbon monox-
ide hemoglobin (COHb), or methionine (Me+Hb) or thiosalicylic hemo-
globin, and some with icterus problem, the SpO2 determination by this
monitor may be inaccurate.
3. The drugs like dopamine, procaine, prilocaine, lidocaine and butacaine
may also be a major factor blamed for serious error of SpO2 measure.
4. As the SpO2 value serves as a reference value for judgement of anemic
anoxia and toxic anoxia, some patients with serious anemia may also
report good SpO2 measurement.
4. Technical Specifications
A. Display Format: LCD Display
SpO2 Measuring range: 0 ~100 %
Pulse Measuring range: 30bpm ~250bpm
Pulse Wave Display: columniation display and the waveform display
B. Power Requirements: 2 ×1.5V AAA alkaline battery (or using the re-
chargeable battery instead), adaptable range: 2.6V~3.6V.
C. Power Consumption: Smaller than 30mA
D. Resolution: SpO2: 1%, Pulse: 1bpm
E. Measurement Accuracy: ±2% in stage of 70%-100% SpO2, and mean-
ingless when stage being smaller than 70%. ± 2 bpm during the pulse
rate range of 30-99 bpm and ± 2% during the pulse rate range of
100~250 bpm
F. Measurement Performance in Weak Filling Condition: SpO2 and pulse
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