Monitoring your oxygen level with a pulse oximeter if you have COVID-19 can help determine if it falls too low. Low levels may need medical attention. COVID-19 is a respiratory infection. It can cause ...

Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

Normal blood oxygen levels mean that there is enough oxygen in your red blood cells to keep your vital organs and tissues functioning properly. You can easily check your blood oxygen levels with an ...

Blood oxygen level is the amount of oxygen circulating in the blood. During an asthma attack, a person may have a lower blood oxygen level, as asthma can reduce the capacity to take in oxygen. Red ...

A dangerously low oxygen level—usually below 92%—can cause shortness of breath, confusion, chest pain, or fainting. It’s often triggered by lung or heart conditions like COPD, asthma, or heart ...

Respiratory desaturation, known as hypoxemia in medical terms, is when you have low blood oxygen saturation. Your blood oxygen saturation is a measure of how much oxygen is in your blood. A normal ...

Oxygen therapy can help people with certain health conditions, such as emphysema, sleep apnea, or severe COVID-19, get enough oxygen to stay well and function. Oxygen therapy may be a temporary ...