What is the normal oxygen saturation (O2 Sat) range?

What is the normal oxygen saturation (O2 Sat) range?

• A. 80 to 90
• B. 85 to 95
• C. 90 to 100
• D. 93 to 100

Answer: (D)

The normal oxygen saturation, commonly referred to as O2 Sat, is an essential measurement in assessing a patient's respiratory and overall health. Oxygen saturation levels indicate the percentage of hemoglobin in the blood that is saturated with oxygen. A normal O2 Sat range is typically between 93% and 100% in healthy individuals. The choice indicating 93 to 100 captures this normal physiological range effectively, considering that a saturation below 93% may suggest hypoxemia, a condition marked by insufficient oxygen in the blood, while levels at or above 100% are not physiologically possible since hemoglobin can only hold a certain amount of oxygen. Understanding this range is critical for monitoring patients, particularly those with respiratory conditions or during anesthesia, as deviations from the normal saturation can prompt further investigation and intervention to ensure adequate oxygen delivery to tissues.

The normal oxygen saturation, commonly referred to as O2 Sat, is an essential measurement in assessing a patient's respiratory and overall health. Oxygen saturation levels indicate the percentage of hemoglobin in the blood that is saturated with oxygen. A normal O2 Sat range is typically between 93% and 100% in healthy individuals.

The choice indicating 93 to 100 captures this normal physiological range effectively, considering that a saturation below 93% may suggest hypoxemia, a condition marked by insufficient oxygen in the blood, while levels at or above 100% are not physiologically possible since hemoglobin can only hold a certain amount of oxygen.

Understanding this range is critical for monitoring patients, particularly those with respiratory conditions or during anesthesia, as deviations from the normal saturation can prompt further investigation and intervention to ensure adequate oxygen delivery to tissues.