What Is a Pulse Oximeter and How Does It Work?
A pulse oximeter is an essential health monitoring device that has gained widespread attention in recent years—especially with the growing focus on respiratory health. But what exactly does it do, and how does it work? This small, non-invasive gadget measures the oxygen saturation level (SpO₂) in your blood—an important indicator of how efficiently oxygen is being delivered throughout your body. It simply clips onto a fingertip or earlobe and uses light sensors to detect oxygen levels without the need for a blood sample. The result is a quick, painless, and highly effective way to monitor your respiratory status in real time. A pulse oximeter is a non-invasive medical device used to measure the oxygen saturation level (SpO₂) in a person’s blood and their pulse rate . It’s commonly used in hospitals, clinics, and even at home to quickly assess how well oxygen is being delivered to the parts of the body furthest from the heart, such as the arms and legs. How Does a Pulse Oxime...