Q. What is a normal reading on a finger pulse oximeter?

Answer

In every healthy human, a normal level of oxygen is usually 95% or higher. Some people with chronic lung disease or sleep apnea can have normal levels around 90% or less. The SpO2 reading on a finger pulse oximeter shows the percentage of oxygen in someone's blood. If your SpO2 reading is lower than 95%, you should consult your doctor.

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