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The Uses And Functions Of A Wrist Pulse Oximeter

| Saturday, 4 January 2014
By Harriett Crosby


The wrist pulse oximeter is a device that is used to find out the levels of oxygen in a person's blood at any time of the day or night, and is ideal for personal use. It also measures the heart rate of a patient. These facts sometimes need to be known for various reasons that relate to someone's health.

The reason why oximeters may be used is when someone's oxygenation is unstable. They are a device that are mostly found in various departments of hospitals. They are common in emergency rooms, and in intensive and critical care rooms. However, oximeters have also been developed that are ideal for home usage, as they fit around a patient's arm, and look just like a wristwatch.

The oximeters that can be used at home are of a convenient size, and are easy to operate. They are also quite reliable, and are able to store information for more than three days. You will just need to clear the device of stored data when the memory is full, otherwise it will not work. If you are considering buying a medical device such as this one, you can feel rest assured that it is safe to use, as it has been accepted under the requirements of the FDA.

Oximeters for home use are most often purchased by persons who need to keep a constant track of their oxygenation percentage. This could be necessary during times of rest, or because they suffer from asthma. The device works with a probe that does not penetrate the skin, and that normally fits over someone's finger. It shines red and infrared light.

Although a large amount of the light is taken in by body tissue, the bit that is not will show the hemoglobin saturation levels. The reading is shown in a percentage, and a healthy level of oxygen is indicated at between ninety-five and ninety-eight percent. It is still fine if the level of oxygen reaches as low as ninety percent, but below this level the patient will need to receive oxygen for respiratory distress relief. The body's cells are unable to function properly when oxygen levels are this low.

There are certain ways that someone's oxygen levels should be measured with oximeters to ensure that the device's readings are more accurate. Firstly, oximeters can only work when the pulse of the patient can be easily detected, and is strong. The reading will not be accurate with a weaker heart rate, and for patients with irregular heartbeats.

The patient who requires the test should also not be moving around, as motion could cause the device to give an unreliable response. The light is disturbed by movement. The device should not be used around other very bright lights, as this could effect its own light. One reading is often not sufficient to determine an accurate level of oxygen.

The wrist pulse oximeter is equipped with a long-lasting battery, and can be used with various software programs that are readily available. The device can also be used when you are wearing nail polish, regardless of the color. They are usually purchased with at least a year warranty.




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