4
3.
CAUTIONS OF USE
• Fingers that
are too thin or too cold may affect the measurement result and cause the SpO2 and
pulse rate readings to be incorrect. In this case, insert a thick finger, such as a thumb or middle
finger, deep enough into the probe.
• Do not use the device on infants or
neonates.
• The
product is suitable for children over four years of age and adults (the weight should be
between 15 kg and 110 kg).
• The examined person must not have
painted nails.
• The subject's nails must not be too long.
• If stable readings cannot b
e obtained, stop measuring. The device may not work properly for all
patients.
• If the screen displays abnormal indications during the test, pull your finger out and
reinsert it to
restore normal operation.
• Read the measured value when the pulse wavefor
m is normalized and the pulse waveform on the
screen is even and stable.
• Contact your doctor if the device is working properly and the indications are outside the no
rm.
Clinical limitations
• Factors that may cause inaccurate measurements:
o Poor heart rate
Significant pulsating blood flow is required for correct measurement. If you have a poor pulse due to
shock, low ambient / body temperature, heavy bleeding, or use of a vasoconstrictor drug, your SpO2
value will decrease.
o Anemia, low hemoglobin, toxic hypoxia.
If you have severe anemia, the device may show abnormal SpO2 measurements.
o A significant amount of a diluting dye e.g. methylene blue, indigo green and acid indigo blue or
carbon monoxide hemoglobin (COHB), methionine (Me + Hb) or hemoglobin, jaundice.
o Drugs such as dopamine, procaine, prilocaine, lidocaine and butacaine.
• It is not recommended to use the device if the patient is suffering from carbon mo
noxide
poisoning.
4.
PRECAUTIONS
