What is a pulse oximeter?
Pulse oximeter is a small electronic medical device that measures the patient's oxygenation of blood or how much oxygen their blood carries. It is normally attached to the index finger with a plastic clip, but can also use on the feet and other parts of the body. Performs it by measuring using diodes emitting light (LED). Medical experts use information from the pulse oximeter to monitor how well oxygen is supplied in the patient's body.
Science after the way the pulse oximeters works are based on the properties of hemoglobin. Hemoglobin is a protein containing iron that transports oxygen in red blood cells. Oxygen is an essential requirement for human function and the human body can survive only a few minutes without oxygen. Oxygenated hemoglobin (or oxyhemoglobin) and unoxenic hemoglobin (or deoxyhemoglobin) are different colors.
On the one hand, the pulse oximeter has two LED lights, one that sends the invisible infrared light and the red light sends. SecondThe device side has a receptor that measures how much of each light passes. The difference between how much of each light is detected is used to measure how many blood is oxygenated. The light must also pass through the skin and bones, as the patient's finger will be held with blood on every pulse.
pulse oximeters are minimally invasive and do not require broken skin. The device is painless and is recommended for use in weak patients such as premature children. They are particularly useful in situations where oxygen flow must be monitored, but simplicity and speed are also required. The emergency and intensive unit care unit consider useful to monitor their patients can also be useful in the diagnosis of sleep disorders, such as Apnobějstal to breathe in sleep.
The device has its limitations. While pulse oximeters can measure the amount of blood in oxygen, it cannot determine how the metabo bodylifes this oxygen. For example, the patient's blood may be full of oxygen, but the poor blood flow would still prevent this oxygen from using organs. The number of pulse oximeters may also be inaccurate to increase carbon monoxide in the patient's blood. Newer models, however, are equipped with a feature that prevents this problem.