Pulse oximetry is a noninvasive, pain-free way of measuring the oxygen in a person's blood.
Dyspnea is a medical term that describes shortness of breath, and a feeling of starving for oxygen. Learn about symptoms and treatment.
Long COVID refers to new or recurring symptoms that occur four or more weeks after an infection with SARS-CoV-2, the virus that causes COVID-19.
Coronavirus is a term describes a family of viruses, common in both animals and humans.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
A sleep study is a noninvasive test that electronically records activity in the brain and body during sleep. Learn about this procedure.
A pediatric sleep study is an evaluation that analyzes a child's sleeping habits in the controlled setting of a sleep lab.
Anemia is a condition in which a person doesn’t have enough red blood cells to carry oxygen throughout the body. As a result, they may experience dizziness, fatigue, and light-headedness.
Fatigue is a common side effect of treatment for cancer. Learn more about symptoms and treatment.