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19
2. Avoid making any body movement, especially your finger while
taking measurement.
3. Long fingernails may obstruct the light sensor and prevent
accurate measurement. Please keep fingernails short while
using the device.
4. Excessive ambient infra-red light, especially in an overly bright
lit room, can interfere with the sensor, preventing an accurate
measurement.
5. Poor blood circulation can affect oximeter readings. Warm
your hands and fingers before taking measurements. Note that
the pulse oximeter is measuring your SpO
2
and PR based on
your blood flow. If the blood flow in your finger drops below a
certain level, the pulse oximeter will not be able to get a
reading.
6. Some people with medical conditions such as anemia,
hypotension and hypothermia may experience inaccurate
reading during use. In such case, we suggest that you consult a
physician.
7. The pulse bar graph which indicates pulse strength can be used
to determine the reliability of a reading. If the height of the
pulse bar is less than 30%, this indicates signal inadequacy and
the displayed SpO
2
and Pulse Rate value is potentially incorrect.
Readjust your finger to ensure proper placement.
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