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

Fact checked by Nick Blackmer Estrogen levels naturally fluctuate throughout life, so there’s no single “normal” ...

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 ...

Introduction Identifying acute hypercapnic respiratory failure is crucial in the initial management of acute exacerbations of COPD. Guidelines recommend obtaining arterial blood samples but these are ...

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 ...

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.

Apple will deliver a software update for recent US Apple Watch models to reimplement the ability to measure blood oxygen levels, a process known as pulse oximetry. Pulse oximetry can be helpful when ...

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 ...