What two measurements does a pulse oximetry device take?

A pulse oximetry device specifically measures two key parameters: pulse rate and oxygen saturation.

Pulse rate indicates how many times the heart beats per minute, which is crucial for assessing cardiovascular health and overall physical condition. Oxygen saturation reflects the percentage of hemoglobin molecules in the blood that are saturated with oxygen. This measurement is particularly important in determining how effectively oxygen is being transported throughout the body, which is vital for proper organ function.

Other options present measurements that are either not taken by a pulse oximetry device or are irrelevant to its functionality. For instance, blood pressure and breathing rate are not monitored by a pulse oximeter; it focuses solely on these two critical aspects of oxygen delivery and heart activity. Understanding the specific capabilities of a pulse oximeter helps healthcare providers effectively monitor and manage a patient’s respiratory and cardiovascular status.