Pulse oximetry is the process of measuring and monitoring the level of concentration of oxygen in blood. Recording pulse oximeter is the appliance used for monitoring. To work effectively, the sensor need to be placed across thin flesh. In grownup people fingertips or earlobes are the best whereas in infants limbs can do. The percentage of hemoglobin that has oxygen loaded to it is determined and the figure is displayed on a screen.
Good gadgets have in-built alarms. The alarms alert users when the level of oxygen in blood falls below a specific level by generating audible sound. This feature is very vital particularly at night when one is sleeping. Individuals with impaired or poor eyesight or problems with mobility also benefit from alarm systems.
The functioning of an oximeter is very simple and is mainly based on difference in absorption of light. The device has a processor and a pair of LEDs, which face a photodiode. The photodiode is normally separated from the LED by a translucent body part like an earlobe. One LED is red in color at 660nm wavelength while the other one is infrared at a wavelength of 940nm. At such wavelengths, absorption of light by hemoglobin that is loaded with oxygen and that which is not is very different.
The diodes flash approximately 30 times every second. The accuracy could be gauged by the consistency of the flashing per minute. For a device to be considered good it should have high accuracy with mechanisms of letting users know if the readings displayed are wrong. Users must also be alerted of inaccurate readings due to interferences. Modern versions allow interfacing with computers hence allowing better reading of displayed data.
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.
Features to check for when buying a device include capability to maintain data from multiple people, availability of accessories, and simplicity of storage. Common accessories include cases for storage, log books, and batteries. The gadget should be simple to use and the shape should be convenient. Buyers have flexibility in picking color of a product since they come in a wide range or color shades.
The manual that comes with the product should be read before the device is put to use. Manuals contain vital specifications concerning maintenance, handling, and storage. To avoid receiving false data, all malfunctions in the gadget must be rectified before use in future.
Good gadgets have in-built alarms. The alarms alert users when the level of oxygen in blood falls below a specific level by generating audible sound. This feature is very vital particularly at night when one is sleeping. Individuals with impaired or poor eyesight or problems with mobility also benefit from alarm systems.
The functioning of an oximeter is very simple and is mainly based on difference in absorption of light. The device has a processor and a pair of LEDs, which face a photodiode. The photodiode is normally separated from the LED by a translucent body part like an earlobe. One LED is red in color at 660nm wavelength while the other one is infrared at a wavelength of 940nm. At such wavelengths, absorption of light by hemoglobin that is loaded with oxygen and that which is not is very different.
The diodes flash approximately 30 times every second. The accuracy could be gauged by the consistency of the flashing per minute. For a device to be considered good it should have high accuracy with mechanisms of letting users know if the readings displayed are wrong. Users must also be alerted of inaccurate readings due to interferences. Modern versions allow interfacing with computers hence allowing better reading of displayed data.
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.
Features to check for when buying a device include capability to maintain data from multiple people, availability of accessories, and simplicity of storage. Common accessories include cases for storage, log books, and batteries. The gadget should be simple to use and the shape should be convenient. Buyers have flexibility in picking color of a product since they come in a wide range or color shades.
The manual that comes with the product should be read before the device is put to use. Manuals contain vital specifications concerning maintenance, handling, and storage. To avoid receiving false data, all malfunctions in the gadget must be rectified before use in future.
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