User Manual for Handheld Pulse Oximeter
38
10 Frequently Asked Questions
1. Q: What's SpO
2
?
A: SpO
2
means the saturation percentage of oxygen in the
blood.
2. Q: What's the normal range of SpO
2
value for healthy people?
A: The normal range varies by individual, but usually over 95%,
otherwise, please consult your physician.
3. Q: What's the normal range of PR value for healthy people?
A: Usually, the normal range is 60bpm~100bpm.
4.
Q: Why do the display value of SpO
2
and PR vary with time?
A: The measured SpO
2
and PR value changes in correspondence
with the change of patient's physiological conditions.
5. Q: What to do if there is no SpO
2
and PR reading?
A: Do not shake the finger, and keep calm during the
measurement. Please also avoid the oximeter and the cuff on the
same limb for blood pressure and oxygen saturation
measurement simultaneously.
6.
Q: How to confirm that the SpO
2
reading is true or accurate?
A: Hold breath for a while (50 seconds or more), if the SpO
2
value significantly decreases, it means that the SpO
2
reading truly
reflects the physiological condition change.
7.
Q: When to replace the batteries?
A: The icon of low battery will appear on the screen when the
battery voltages are low. By then, batteries need to be replaced.
8.
Q: What to do if the oximeter is moistened or sprayed by water?
A: Remove the batteries immediately and dry the oximeter
completely with a hair dryer.
9.
Q: What factors will affect the SpO
2
accuracy?
A:a) Intravascular dyes such as indocyanine green or
methylene blue;