Pulse Oximeters: A Helpful Tool for Those with COVID
January 22, 2025
A pulse oximeter is a small, non-invasive clip-on device that measures blood oxygen levels—an important metric for individuals affected by respiratory illnesses like COVID-19. It emits light through the skin to measure the percentage of oxygen in your blood—also known as oxygen saturation or saturation of peripheral oxygen (SpO2). Using a pulse oximeter can assist in tracking your respiratory health, especially when it is affected by COVID-19. COVID-19 disrupts oxygen delivery by damaging lung tissues, inflaming airways, filling lung air space (alveoli) with fluid and sometimes causing blood clots. These issues impair the lung’s ability to oxygenate the blood, leading to decreased oxygen levels. Low blood oxygen can affect how your body functions. Symptoms of low SpO2 include: Some people with COVID-19 may experience "silent hypoxia,” where they suffer dangerously low oxygen levels without noticeable shortness of breath or other obvious symptoms. Regular monitoring with a pulse oximeter when you have COVID can help detect declining SpO2 early, even in the absence of symptoms. Early detection enables timely medical attention, which is crucial for effective treatment and recovery. If you're considering monitoring with a pulse oximeter when you have COVID-19, here are some steps to follow: Before testing, consult your physician to determine if it’s suitable for you while you are infected with COVID. A doctor can offer personalized recommendations based on your specific health condition. Know your baseline Sp02 level. Generally, levels between 95% and 100% are considered normal. Readings below 92% are concerning and warrant medical attention. When using a pulse oximeter at home, carefully read the full user guide provided with your specific device and follow its instructions. Continue to check your oxygen levels, especially if you experience symptoms like increased shortness of breath, chest pain or confusion. If your SpO2 drops below 92% or you experience symptoms like difficulty breathing, persistent chest pain or confusion, seek medical care immediately. These signs may indicate severe complications requiring prompt treatment. A pulse oximeter can be a valuable tool for those with COVID-19, offering peace of mind through regular monitoring of your oxygen levels. Always consult with your healthcare provider to ensure that use of a pulse oximeter is appropriate for your situation and to interpret the readings accurately. References
Why Monitor SpO2?
Using a Pulse Oximeter at Home
Consult Your Healthcare Provider
Understand Normal Readings
Follow Device Instructions
Monitor Regularly
When to Seek Medical Attention
