Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas (ABG) test results.

If someone’s blood oxygen level falls below 60 mm Hg, there may not be enough oxygen reaching the body’s vital organs. This can lead to symptoms such as shortness of breath and dizziness. This article ...

The blood oxygen sensor featured in Apple Watch Series 6 and 7 is “not intended for medical use,” Apple says. That seems odd, considering that low blood oxygen is a serious medical condition. If the ...

PARIS — Oxygen therapy is used too often in patients with respiratory difficulties, says one expert, and should only be given when oxygen saturation levels (SpO2) drop below 93%, as per the current ...

For the past few weeks, the Pixel Watch has been missing estimated oxygen variation (EOV) data in the Fitbit app, but the graph is now back. This metric is an “approximation of the changes in your ...

In the early days of the COVID-19 pandemic, Ashraf Fawzy remembers one patient, a Black woman with asthma, who arrived in the intensive care unit of Johns Hopkins Hospital. Despite her pulse oximeter ...