Pulse oximetry is a method of monitoring the saturation of oxygen in a patient. The monitoring device used for this process is called a recording pulse oximeter. The sensor in the device is placed across a thin part of the body preferably the earlobe or fingertip in adults and foot or hand in infants. The device monitors the percentage of hemoglobin loaded with oxygen and displays the value on a screen.
When making a purchase, one should go for a device that incorporates alarm systems. Such devices produce audible sounds to alert the patient when the concentration of oxygen falls below unacceptable levels. This feature is particularly important during night time when one is asleep. People with impaired vision or any kind of immobility may also find alarms to be important.
The functioning of oximeters bases on disparity in how light is absorbed. A typical design is made of a processor and 2 light emitting diodes, which face a photodiode directly. When in use the LEDs and the photodiode must have a thin layer of and organ like the lower side of the ear separating them. One LED is colored red with a wave-length of 660nm whereas the second is infrared and has a wave-length of 940nm. How the red and infrared LED lights are absorbed by deoxygenated and oxygenated hemoglobin differs. This forms the main working principle in the device.
The LEDs flash about thirty times in every second. High accuracy may be measured by the steadiness of the flashing. Good devices have high accuracy and have mechanisms for notifying users of incorrect readings. Users should also be notified of inaccuracies in readings because of interferences. Modern models come with computer interfaces that allow users to see recorded values better.
The oximeter can be integrated into a larger system that monitors several parameters in patients. Such capabilities are important because the user can collect a range of measurements from the system at once. Additional features such as portability and ability to measure and display the rate at which the heart beats are important too. In portable brands, the life of the battery and how long it takes to discharge are the key factors to consider.
The capabilities of various models differs a lot. Current day recording oximeters incorporate Bluetooth technology to allow exchange of data with other gadgets. They also allow for analysis of patterns of oxygen concentration in patients from the records collected and maintained over time. The records may also be printed out for referral, record keeping, or further analysis.
When purchasing, extra features to check for include capability to keep data for more than one user, availability of added accessories, and ease of storage. Added accessories include log books and cases for storage. The device must be easy to use with a good shape for convenience. A buyer has flexibility in choosing color of the product because there are many options.
It is a good idea to go through the producer manual before putting the device to any use. Manuals provide important specifications about storage, maintenance, and handling. So as to avoid getting false data, any kind of malfunction in the products must be checked first before using them.
When making a purchase, one should go for a device that incorporates alarm systems. Such devices produce audible sounds to alert the patient when the concentration of oxygen falls below unacceptable levels. This feature is particularly important during night time when one is asleep. People with impaired vision or any kind of immobility may also find alarms to be important.
The functioning of oximeters bases on disparity in how light is absorbed. A typical design is made of a processor and 2 light emitting diodes, which face a photodiode directly. When in use the LEDs and the photodiode must have a thin layer of and organ like the lower side of the ear separating them. One LED is colored red with a wave-length of 660nm whereas the second is infrared and has a wave-length of 940nm. How the red and infrared LED lights are absorbed by deoxygenated and oxygenated hemoglobin differs. This forms the main working principle in the device.
The LEDs flash about thirty times in every second. High accuracy may be measured by the steadiness of the flashing. Good devices have high accuracy and have mechanisms for notifying users of incorrect readings. Users should also be notified of inaccuracies in readings because of interferences. Modern models come with computer interfaces that allow users to see recorded values better.
The oximeter can be integrated into a larger system that monitors several parameters in patients. Such capabilities are important because the user can collect a range of measurements from the system at once. Additional features such as portability and ability to measure and display the rate at which the heart beats are important too. In portable brands, the life of the battery and how long it takes to discharge are the key factors to consider.
The capabilities of various models differs a lot. Current day recording oximeters incorporate Bluetooth technology to allow exchange of data with other gadgets. They also allow for analysis of patterns of oxygen concentration in patients from the records collected and maintained over time. The records may also be printed out for referral, record keeping, or further analysis.
When purchasing, extra features to check for include capability to keep data for more than one user, availability of added accessories, and ease of storage. Added accessories include log books and cases for storage. The device must be easy to use with a good shape for convenience. A buyer has flexibility in choosing color of the product because there are many options.
It is a good idea to go through the producer manual before putting the device to any use. Manuals provide important specifications about storage, maintenance, and handling. So as to avoid getting false data, any kind of malfunction in the products must be checked first before using them.
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