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A period of low blood oxygen during sleep is defined as less than or equal to 88% blood oxygen saturation lasting for five or more minutes. There are a couple of reasons a person may experience low blood oxygen levels, also called hypoxemia, while sleeping.
Do you track your overnight blood oxygen levels? We discuss normal and low blood oxygen levels, causes of lower levels in sleep, and when to seek medical help.
Sleep apnea — a condition in which breathing stops and starts many times during sleep. Some medicines that can cause slow, shallow breathing can lead to hypoxemia. These include certain opioid pain relievers and medicines that prevent pain during surgery and other procedures, called anesthetics.
Low oxygen levels in the blood during sleep, called “nocturnal hypoxemia,” can be caused by several things. You must know about these causes and risk factors for early detection and treatment. Underlying medical conditions. Chronic Obstructive Pulmonary Disease (COPD): COPD makes it hard to get enough oxygen while sleeping because the lungs ...
If your blood has low levels of oxygen, it can’t deliver enough oxygen to your organs and tissues that need it to keep working (hypoxia). This can damage your heart or brain if it persists over time (for instance, with nocturnal hypoxemia caused by sleep apnea).
Low oxygen saturation levels during sleep are linked to several health conditions. One study found that an average value below 90 percent while sleeping was linked with double the risk of...
People with obstructive sleep apnea (OSA) typically have low oxygen levels when they sleep because of gaps in their breathing. Blood oxygen during sleep is considered low if levels are below 95%. Medical intervention may be advised if it drops below 92%.