Warning : This table does not apply to individuals already suffering from certain illnesses (e.g.
asthma, heart disease, respiratory diseases) or who are at altitudes above 4921 feet / 1500 meters.
If you are already suffering from a disease, always consult your doctor to analyze your results. If
you have any doubts about your results, contact your doctor.
SpO
(peripheral capillary
2
oxygen saturation) result as a %
99 - 95
94 - 90
< 90
Reference: World Health Organization (WHO): Pulse Oximetry Training Manual, 2011.
FALL IN PERIPHERAL CAPILLARY OXYGEN SATURATION DUE TO ALTITUDE
Please note : The following table gives information about the effects of different altitudes on oxygen
saturation levels as well as their effects on the human body. The following table does not apply to individuals
already suffering from certain illnesses (e.g. asthma, heart disease, respiratory diseases). In people already
suffering from these illnesses, the symptoms (e.g. hypoxia) may already occur at low altitudes.
Altitude
1500 - 2500 m
2500 - 3500 m
3500 - 5800 m
5800 - 7500 m
7500 - 8500 m
Reference : Hackett PH, Roach RC: High-Altitude Medicine. Dans : Auerbach PS (ed): Wilderness Medicine, 3e édition ; Mosby, St.Louis, MO
1995 ; 1-37.
ANALYSIS OF RESULTS
Critical level : consult a doctor immediately or call for
SpO
2
(peripheral capillary oxygen
saturation) result as a %
> 90
~ 90
< 90
< 80
< 70
BewellConnect - BW-OX1 - User Manual - 072017v2
Diagnosis
Normal level
Reduced level (medical visit recommended)
emergency help
Consequences for the individual
No mountain sickness (in general)
Mountain sickness, adaptation
High probability of mountain sickness,
Severe hypoxia, only a stay for a limited
period of time is possible
Immediate life-threatening danger
recommended
adaptation imperative
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