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Blood oxygen levels (arterial oxygen) indicate the oxygen levels present in the blood that flows through the arteries of the body. Normal arterial oxygen pressure (PaO2) measured using the arterial blood gas (ABG) test is approximately 75 to 100 millimeters of mercury.
Your blood oxygen level (blood oxygen saturation) is the amount of oxygen you have circulating in your blood. Oxygen is essential to life, and our bodies need a certain amount of oxygen to function properly. Oxygen enters your body through your nose or mouth when you breathe (inhale) and passes through your lungs into your bloodstream.
A healthy blood oxygen level is 75–100 mm Hg, or 95–100%. Low blood oxygen levels, known as hypoxemia, may be a cause for concern.
Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas...
A normal range for your blood oxygen level is between 92% and 100%. SpO2 readings can fluctuate based on activity, overall health, and other factors. Your body relies on a coordinated effort between your heart, lungs, and circulatory system to maintain a healthy blood oxygen level.
A normal blood oxygen saturation level is in the range of 95–100%. If it falls below 91%, it requires immediate medical attention. Doctors consider a reading of 91–94% as borderline. Doctors and other healthcare professionals use pulse oximeters to measure blood oxygen saturation.
Diseases & Conditions / Hypoxemia is low levels of oxygen in your blood. It causes symptoms like headache, difficulty breathing, rapid heart rate and bluish skin. Many heart and lung conditions put you at risk for hypoxemia. It can also happen at high altitudes. Hypoxemia can be life-threatening.
Blood oxygen levels measure the amount of oxygen in the blood. Normal oxygen saturation levels vary slightly from person to person, but they generally range between 95% to 100%.
Normal blood oxygen levels in adults are between 95% and 100% oxygen saturation (pulse oximeter reading). See a healthcare provider if your at-home blood oxygen measurement is 93% to 94%.
What is it used for? Why do I need a blood oxygen level test? What happens during a blood oxygen level test? Will I need to do anything to prepare for the test? Are there any risks to the test? What do the results mean? Is there anything else I need to know about blood oxygen level tests? References. Blood Oxygen Level.