Oxygen Levels, Pulse Oximeters, and COVID | 合法醫療器材資訊網

2021年2月3日—Apulseoximetermeasureshowmuchoxygenisinsomeone'sblood.Itisasmalldevicethatclipsontoafinger,oranotherpartofthebody.

Many people with COVID-19 have low levels of oxygen in their blood, even when they feel well. Low oxygen levels can be an early warning sign that medical care is needed.

A pulse oximeter measures how much oxygen is in someone’s blood. It is a small device that clips onto a finger, or another part of the body. They are used often in hospitals and clinics and can be bought to use at home.

Many people consider oxygen level an important sign of how well a body is working, just like a person’s blood pressure or body temperature. People who have a lung or heart condition may use a pulse oximeter at home to check how they are doing, as directed by their health care provider. People can buy pulse oximeters without a prescription at some pharmacies and stores.