Field Internship Student Data Acquisition Project. (FISDAP) Airway Practice Exam

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What device can be used to measure oxygen saturation in a patient’s blood?

Flowmeter
Pulse oximeter
Capnometer
Sphygmomanometer

The correct answer is: Pulse oximeter

A pulse oximeter is the device specifically designed to measure oxygen saturation in a patient’s blood. It works by employing light beams to assess how much oxygen is being carried by hemoglobin in the blood, providing a percentage of oxygen saturation (SpO2) in real-time. This allows healthcare providers to quickly evaluate a patient’s respiratory status and make informed decisions regarding their care, especially in emergency and critical situations. The other devices mentioned serve different functions and do not provide oxygen saturation readings. A flowmeter measures the flow of gases, typically used in oxygen delivery systems, while a capnometer measures the concentration of carbon dioxide in exhaled air, which is crucial for assessing ventilation. A sphygmomanometer, on the other hand, is used to measure blood pressure, and is not related to oxygen saturation. Understanding the distinct purposes of these devices highlights the unique role of the pulse oximeter in monitoring a patient’s oxygen levels.