A heart attack is a common but serious health condition that takes place when the flow of blood to the heart is severely reduced or blocked. This is primarily caused by the buildup of fat, cholesterol ...

Normal blood oxygen saturation levels are 95% to 100%. Most people should have a blood oxygen level of at least 92%. If your blood oxygen level drops below 90%, it can be dangerous and requires ...

To take a pulse oximetry reading, turn on the device, place it on your fingertip, sit still, and wait for a stable reading. Normal oxygen saturation levels range from 95% to 100%; levels below 92% may ...

Multiple users report that Google’s March 2026 update to the Pixel Watch is breaking SpO2 and skin temperature readings in the Fitbit app. Users complain that there’s no data for these after ...

Tucked away in some Garmin watches is a sensor that enables continuous blood oxygen monitoring, a feature the company refers to as ‘Pulse Ox’. You may have seen the feature appear in menus or in ...

Abstract: Measuring critical health data such as heart rate, blood pressure, and oxygen saturation (SpO2) from a distance is an area of research, especially when normal methods do not work well. This ...

A pulmonary embolism (PE) is a blockage in one of the pulmonary arteries in the lungs, usually caused by blood clots that travel from the legs or other parts of the body. This condition can obstruct ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Ellen Lee Ellen Lee is a writer focused on parenting and health gear. She has ...

Capnography is an essential tool for EMS providers, offering real-time insight into a patient’s ventilatory status. By measuring end-tidal carbon dioxide (ETCO2) and displaying a capnography waveform, ...

A pulse oximeter measures your blood oxygen levels and pulse. A low level of oxygen saturation may occur if you have certain health conditions. Your skin tone may also affect your reading. Pulse ...