Is a blood oxygen level of 97% normal?

Feb 06, 2025 Source: Cainiu Health

Dr. Tian Hongbo

Introduction

Blood oxygen refers to blood oxygen saturation. If it is arterial blood oxygen saturation, 97% is normal; if it is venous blood oxygen saturation, 97% is higher than the normal range and considered abnormal. If abnormalities are detected, timely medical consultation is recommended. It is also advised to maintain a healthy lifestyle with regular作息 (作息 should be translated as作息 schedule or routine), ensure sufficient sleep, improve dietary habits, adjust physical condition, and maintain overall health.

　　Blood oxygen refers to blood oxygen saturation. If it is arterial blood oxygen saturation of 97%, it is normal; if it is venous blood oxygen saturation of 97%, it is above the normal range and considered abnormal. If abnormal, timely medical attention is recommended. Detailed explanation is as follows:

　　Arterial blood oxygen saturation reflects the efficiency of oxygen exchange in the lungs and the circulatory system's ability to supply oxygen. The normal range is 95% to 98%. If blood oxygen saturation is 97%, it falls within the normal range, indicating sufficient oxygen supply to the body, meeting the needs of various organs and tissues.

　　Venous blood oxygen saturation reflects the tissue's utilization of oxygen, with a normal range of 64% to 88%. If venous blood oxygen saturation reaches 97%, it exceeds the normal range and is considered abnormal. However, such a situation is relatively rare in practice, and timely medical evaluation and related examinations are recommended to determine the underlying cause.

　　It is recommended to maintain healthy lifestyle habits, ensure adequate sleep, improve dietary patterns, adjust physical condition, and promote overall health.

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