Answer :
Final answer:
The normal range for oxygen saturation measured via a pulse oximeter is 95-100 percent. Values below this can indicate hypoxemia, a condition of low blood oxygen levels. So, the correct option is d. 95-100.
Explanation:
The normal range for oxygen saturation, also commonly referred to as "percent sat," is an important measure of how much oxygen is being carried by the hemoglobin in the blood. Under normal conditions, the hemoglobin in red blood cells that have passed through the lungs is about 98 to 99 percent saturated with oxygen, making the blood oxygenated. When measured with a pulse oximeter, which uses light wavelengths to assess the amount of oxygen bound to hemoglobin, normal readings will be within the range of 95-100 percent.
When oxygen saturation drops below 95 percent, it can be indicative of hypoxemia, or low blood oxygen levels, which can be dangerous, especially in individuals at rest, such as during surgery with anesthesia. The device calibrated for measuring this is known as a pulse oximeter and is typically placed on a thin part of the body, like a fingertip, to provide an immediate reading. It is crucial to maintain proper oxygen levels as low saturation - hypoxia - can lead to severe complications, including damage to sensitive tissues like brain neurons.
