Pulse oximetry is a non-invasive technique of monitoring the level of saturation of oxygen gas in the blood of a patient. This monitoring is done using a recording pulse oximeter. The device monitors the way oxygen saturation changes in the body and alerts the doctor or the patient when it falls under dangerously low levels. This allows for fast intervention hence preventing possible loss of life or commas.
Spectrophotometry is the main principle that the working of these gadgets bases on. This principle is dependent on the mode of absorption of red and infrared radiation by deoxygenated and oxygenated blood cells. These rates of absorption are recorded by the sensor and passed to the main machine for processing. The main machine gives fresh values at intervals of 0.5 or 1 seconds after processing. This high rate ensures high accuracy.
The device has two diodes that emit red and infrared radiations. The diodes are positioned directly opposite to their respective detectors which are separated by 5 to 10 millimeters of tissue. This is the reason why the device is placed on an organ that has thin tissues such as the finger or earlobe. The sensors are made in form of clips or wraps. Some studies reveal that earlobes are not very effective for measuring oxygen saturation inside the body.
These devices are very useful in any setting where the amount of oxygen saturation within the body needs to be known at all times. Such settings include emergency units, intensive care, operation rooms, and in recovery and treatment wards in hospitals. Patients are advised to keep calm or minimize major movements in order to ensure accuracy of the readings. Devices with recording capability are better because they maintain a history of all values taken over a given period.
Oximeters have several uses besides measuring oxygen saturation. First, oximetry can serve as a replacement for blood gas analysis except in cases where acid-base state or PaCO2 is necessary. This method is also cheaper, easier to perform, and less painful compared to many others. It also has a higher level of accuracy especially in cases where the patient is conscious. Recorded values can be used to determine variations and to set standards in patients.
Using an oximeter also ensures that oxygen supplied in tanks to patients is used economically without wastage. Other uses are in neonatal care and intrapartum fetal monitoring. However these two applications are not yet standardized but they may in the near future. Besides being used in medical buildings, these devices are also used in ambulances as a form of first aid to patients. They are also becoming a common component of GP kit.
In primary care, oximetry finds use in diagnosing and managing exacerbation of chronic obstructive pulmonary disease in a location. It also helps in grading the level of seriousness of an asthma attack. An asthma attack is considered life-threatening is the level of saturation falls at or below 92 percent. Severity of bronchiolitis in children is also assessed and medically cared for through this method.
The recording function in recording oximeters makes them to cost a little higher than other models. Prices vary according to the degree of complexity. Stores that sell medical equipment are among the places one can buy these devices from.
Spectrophotometry is the main principle that the working of these gadgets bases on. This principle is dependent on the mode of absorption of red and infrared radiation by deoxygenated and oxygenated blood cells. These rates of absorption are recorded by the sensor and passed to the main machine for processing. The main machine gives fresh values at intervals of 0.5 or 1 seconds after processing. This high rate ensures high accuracy.
The device has two diodes that emit red and infrared radiations. The diodes are positioned directly opposite to their respective detectors which are separated by 5 to 10 millimeters of tissue. This is the reason why the device is placed on an organ that has thin tissues such as the finger or earlobe. The sensors are made in form of clips or wraps. Some studies reveal that earlobes are not very effective for measuring oxygen saturation inside the body.
These devices are very useful in any setting where the amount of oxygen saturation within the body needs to be known at all times. Such settings include emergency units, intensive care, operation rooms, and in recovery and treatment wards in hospitals. Patients are advised to keep calm or minimize major movements in order to ensure accuracy of the readings. Devices with recording capability are better because they maintain a history of all values taken over a given period.
Oximeters have several uses besides measuring oxygen saturation. First, oximetry can serve as a replacement for blood gas analysis except in cases where acid-base state or PaCO2 is necessary. This method is also cheaper, easier to perform, and less painful compared to many others. It also has a higher level of accuracy especially in cases where the patient is conscious. Recorded values can be used to determine variations and to set standards in patients.
Using an oximeter also ensures that oxygen supplied in tanks to patients is used economically without wastage. Other uses are in neonatal care and intrapartum fetal monitoring. However these two applications are not yet standardized but they may in the near future. Besides being used in medical buildings, these devices are also used in ambulances as a form of first aid to patients. They are also becoming a common component of GP kit.
In primary care, oximetry finds use in diagnosing and managing exacerbation of chronic obstructive pulmonary disease in a location. It also helps in grading the level of seriousness of an asthma attack. An asthma attack is considered life-threatening is the level of saturation falls at or below 92 percent. Severity of bronchiolitis in children is also assessed and medically cared for through this method.
The recording function in recording oximeters makes them to cost a little higher than other models. Prices vary according to the degree of complexity. Stores that sell medical equipment are among the places one can buy these devices from.
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