What does a pulse oximeter measurement of 98% indicate?

A pulse oximeter measurement of 98% indicates that the oxygen saturation of hemoglobin in the blood is at a level that is considered to be within the normal range for healthy individuals. Normal oxygen saturation typically ranges from 95% to 100%, so 98% signifies that nearly all of the hemoglobin is saturated with oxygen, reflecting efficient gas exchange in the lungs.

This level is particularly important in clinical settings, as it helps healthcare providers assess a person's respiratory function and the effectiveness of oxygen transport in the body. A reading in this range suggests that the individual is likely not experiencing significant respiratory distress or hypoxemia, meaning their oxygen levels are adequate for bodily functions.

Other options do not accurately reflect what a 98% measurement signifies. Assertions about the pulse oximeter being wrong would be misleading without additional context. A measurement of a person's pulse rate is unrelated to oxygen saturation percentages. Furthermore, respiratory depression is often associated with lower oxygen saturation levels, rather than a normal or high reading like 98%.