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33
 Strenuous action of the subject or extreme electrosurgical interference may
also affect the accuracy.
 If some abnormal conditions appear on the screen during test process,
pull out the finger and reinsert to restore normal use.
 The update period of data is less than 5 seconds, which is changeable
according to different individual pulse rate.
 Please read the measured value when the waveform on screen is equably
and steady-going, this measured value is optimal value. And the waveform
at the moment is the standard one.
 The problem of overrating would display when the patient is suffering from
toxicosis which caused by carbon monoxide, the device is not recommended
to be used under this circumstance.
Clinical restrictions:
• As the measure is taken on the basis of arteriole pulse, minimal pulsating
blood flow of subject is required. For a subject with weak pulse due to shock,
low ambient/body temperature, major bleeding, or use of vascular contracting
drug, the SpO
measurement will be more sensitive to interference.
• For those with a substantial amount of staining dilution drug (such as
methylene blue, indigo green and acid indigo blue), or carbon monoxide
hemoglobin (COHb), or methionine (Me+Hb) or thiosalicylic hemoglobin,
and some with icterus problem, the SpO
be inaccurate.
• The drugs like dopamine, procaine, prilocaine, lidocaine and butacaine
may also be a major factor blamed for serious error of SpO
• As the SpO
value serves as a reference value for judgement of anemic
2
anoxia and toxic anoxia, some patients with serious anemia may also report
good SpO
measurement
2
Note:
 For the particular content of clinical restrictions and taboo disease,
please read interrelated medicine literature as reference.

4.2 Menu Operations:

After turning on the device, press the wheel key down under any test condition
to enter the main menu as Fig.4-2. On the main menu interface, by moving
the upper wheel key to the left or right can move the menu choice bar.
Then press the wheel key down to choose corresponding option:
waveform (PLETH) will decrease. In this case, the
2
ENGLISH
determination by this monitor may
2
measure.
2

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