A study led by biomedical scientist Erica Heinrich at the University of California, Riverside, highlights a critical gap in ...

Here is what your resting heart rate reveals about cardiovascular health and when to see your doctor. Pulse checks and ...

High environmental heat and physical exertion combine to limit oxygen delivery to the heart muscle, raising ischemic risks in ...

Do you simply remember that SpO2 is safe if it is 95% or higher, and dangerous if it drops below 90%? In reality, applying this understanding to certain patients, such as those with COPD, can lead to ...

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 ...

An overnight pulse oximetry test checks your blood oxygen levels while you sleep. It's not enough to diagnose sleep apnea, but it can show if you need more tests. An overnight pulse oximetry test is a ...

You might love the motivating tempo for workouts or the cadent call for calm that a smartwatch heart rate monitor provides. But when it’s time for an upgrade, what ...

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 ...

This review synthesised existing evidence on racial disparities in pulse oximeter accuracy, quantified the degree of bias, evaluated clinical effects, highlighted implications for practice, and ...

Tiffany Kinyua is a psychology major with a minor in biology and she is a 2025-26 health care ethics intern at the Markkula Center for Applied Ethics at Santa Clara University. Views are her own.

Treating the monitor, not just the patient, can help to guide your clinical decision-making process toward a more accurate and definitive differential diagnosis. We’ve all heard the saying “treat the ...