Healthy blood oxygen levels are important because oxygen is what fuels your cells, tissues, muscles, and organs. “Normal SpO2 values are in the high or even mid- to low 90s,” says Atul So, if you are admitted to an ER, you will have your oxygen saturation monitored. This gets monitored closely because an asthma attack with a saturation of less than 92 percent is considered a severe asthma attack. The number one cause of death due to asthma is hypoxia. So, it's very important to monitor oxygen levels in all asthmatics admitted
The most readily accepted indication for supplemental oxygenation is hypoxemia, or decreased levels of oxygen in the blood. For the otherwise healthy patient, oxygen saturation targets are generally at 92 to 98%. For patients with chronic hypercapnic conditions, target oxygen saturations are generally between 88 to 92%, with oxygen

ScV0 2 is a good and more practical surrogate for SvO 2. If you begin with 100% arterial oxygen saturation and end up with a 75% venous oxygen saturation (ScV0 2 ), then oxygen consumption or “oxygen extraction” was 25%. Normal range of oxygen extraction = 25-30%, corresponding to a ScV0 2 > 70%.

The typical range for oxygen saturation levels is between 95 percent and 100 percent. When the oxygen saturation levels fall below 95 percent, it is considered low, and it can cause health problems. . 211 157 366 299 104 316 499 485

is 100 oxygen saturation good