When your blood oxygen level goes outside the typical range, you may begin experiencing symptoms.
Shortness of breath
If you continue to have low blood oxygen levels, you may show symptoms of cyanosis. The hallmark sign of this condition is a blue discoloration of your nail beds, skin, and mucous membranes.
Cyanosis is considered an emergency. If you’re experiencing symptoms, you should seek immediate medical attention. Cyanosis can lead to respiratory failure, which can be life-threatening.