While an oxygen saturation level above 95% is usually considered good and below 90% is often considered problematic, every individual is different. Oxygen saturation levels will vary from person-to-person based on many factors — levels tend to peak around mid-childhood and slowly decline thereafter, for instance. 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. Understand levels, chart, and hypoxemia. 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. Your blood oxygen level is a measure of how much What is a good oxygen level? “Normal people who have working lungs, and all those steps are going well, their blood oxygen level will usually be 96-100 percent,” adds Dr. Uppal. A few notches down at 94 percent, he says, will be considered “abnormal,” but that won’t necessarily be cause for alarm. The pulse oximeter measures two distinct things: The first number that comes up is most often the pulse rate. Usually this number is marked by a small heart. The second number that comes up is the level of oxygen in the blood. Both numbers are needed to assess your present levels. At this point, it is important to discuss the limitations of the . Blood oxygen saturation. normal. 95–100%. borderline. 91–94%. low (hypoxemia) under 91%. It is not possible for blood oxygen saturation levels to exceed 100%. However, researchers explain that people who receive concentrated oxygen may be at risk of oxygen toxicity or oxygen poisoning. Abstract. Blood oxygen in the fetus is substantially lower than in the newborn infant. In the minutes after birth, arterial oxygen saturation rises from around 50–60% to 90–95%. It is a reflection of how well your body is absorbing oxygen. Arterial blood gas: This is a blood test that measures oxygen saturation and pressure, as well as your carbon dioxide and bicarbonate levels in your arterial blood. It is not a standard test, so you would only have your arterial blood gas checked if your medical team is concerned partial pressure of oxygen (PaO2): 80–100 millimeters of mercury (mmHg) partial pressure of carbon dioxide: 35–45 mmHg; bicarbonate: 22–26 milliequivalents per liter; oxygen saturation: 95 The normal oxygen saturation level is 97–100% (OER #1). Older adults typically have lower oxygen saturation levels than younger adults. For example, someone older than 70 years of age may have an oxygen saturation level of about 95%, which is an acceptable level. It is important to note that the oxygen saturation level varies considerably

is 100 oxygen saturation good