Thursday, December 24, 2009

Pulse Oximeters

A pulse oximeter is a device that measures the amount of oxygen in an individual’s blood, in addition to heart rate. This non-invasive device measures the color changes that red blood cells undergo when they become saturated with oxygen. By transmitting a special light beam through a fingertip to evaluate the color of the red cells, a pulse oximeter can calculate the degree of oxygen saturation within one percent of directly measured blood oxygen. Because of their portability and speed, pulse oximeters are very useful for pilots operating in nonpressurized aircraft above 12,500 feet where supplemental oxygen is required. A pulse oximeter permits crewmembers and passengers of an aircraft to evaluate their actual need for supplemental oxygen. [Figure 6-47]


  1. Since getting This meter, my mother and I have been over joyed. Now she can be more independant, and is able to see when her oxygen is too low. It’s really a wonderful product. pulse oximeter

  2. They are such useful little devices... I'm a climber and it's great to know how I'm being affected by the altitude.