Your heartbeat
what does the pulse measure
Your pulse measures the action of the heart.
The pulse (usually taken in the wrist) measures the heart rate.
No, a thermometer measures temperature,
A heart-rate monitor is used.
lie detector
A pulse oximeter measures the body's oxygen saturation with a small clip.
The beats that you feel of your pulse.
Pulse oximeter
A pulse plethysmograph measures changes in blood volume in a specific area (usually a finger or toe) over time, which corresponds to the pulsatile blood flow through that area. It is commonly used to assess peripheral perfusion and detect conditions such as arterial occlusion or peripheral vascular disease.
No, it measures your heart rate. Number of times it beats in a minute.
A pulse oximeter measures the blood's oxygen levels. Usually attached to a person's finger, it measures the amount of hemoglobin saturated by oxygen. It uses two wavelengths of lights which are used to make the calculation based on how much of the wavelength is absorbed by the hemoglobin.