Everything About Pulse Oximeter

Pulse oximeters have changed the way how professionals in the medical field assess cardio-respiratory health dramatically. Even though it is not exactly perfect, the pulse oximeter can give the doctors an idea how efficiently a patient is breathing air, how his physiology is handling oxygen, and how well he is tolerating such bodily process.
A pulse oximeter is a device that uses non-intrusive method of using the concept of light waves passing through the body in order to determine the amount of oxygen is carried by the blood stream. It can also measure and record the patient's pulse.
Pulse oximeters have a probe resembling a clothes pin, which is placed on translucent parts of the body, such as fingertips, toes or even ear lobes. One side of the clip has a light emitting diode or LED, whereas the other has a sensor that receives the light that has passed through the skin. This probe is connected to a computer that collates and interprets data.

• http://utmj.org/index.php/UTMJ/user/viewPublicProfile/5616
• http://journals.gonzaga.edu/index.php/gulawreview/user/viewPublicProfile/25376

Hemoglobin, the iron-containing oxygen-transport metalloprotein in the red blood cells, absorbs varying amounts of light depending on the amount of oxygen that it has absorbed. Through measuring the amount of light collected by the sensor, the computer connected to the device can determine the amount of the oxygen saturation found in the blood.
Pulse oximeters provide the information needed to determine the percentage of the saturation of oxygen in the blood. Healthy people typically have more than ninety percent of oxygen saturation at normal conditions. However, people with medical conditions such as chronic obstructive pulmonary disease or sleep apnea might have lower percentage of oxygen saturation, which are considered acceptable for their cases. Saturation below eighty percent indicates abnormalities in the patient's body.
On the other hand, there are some conditions that may cause faulty information or data from pulse oximeter readings. These include the presence of nail polish and other cosmetics, cold extremities and poor blood circulation. Activities that directly or indirectly influence the bodily mechanism, such as sleeping or exercise, can also affect the readings of oximeter and can cause confusion on the results. Thus, the patient must have a viable health condition in order to attain the most accurate results possible.
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