Pulse oximetry is a measurement method used on patients to monitor O2 saturation in blood. This monitoring is done using a recording pulse oximeter. The gadget monitors and records any changes in the degree of oxygen concentration in blood cells and alerts the doctor. Notification can be in form of a sound and only happens when the level falls too low. Early medical intervention can therefore be done following the alerts.
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 gadget comprises of two light emitting diodes that emit infrared and red radiations. When in use, the diodes must be placed directly opposite to their respective detectors. The detectors and the diodes should then be separated by 5-10 mm of tissue. This is why an oximeter must be placed on an organ with thin tissues like an earlobe or fingertip. Sensors of the device are made into clips or wraps. Recent studies show that oxygen saturation inside the body cannot be measured effectively through earlobes.
These devices find use in any medical setting where blood oxygen saturation needs to be monitored at all times. Examples of such settings are operation rooms, recovery and treatment wards, emergency units, and intensive care. Accuracy of the readings is ensured by the patient staying calm and avoiding big moves. Devices that are able to record values are better because a history of values recorded within a given period can be maintained.
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 is used in diagnosis and management exacerbation of COPD chronic obstructive pulmonary disease in a place. The severity of an asthma attack can also be graded through this method. When the saturation level falls below 92 percent, it indicates that the asthma attack is life-threatening. The degree of seriousness of bronchiolitis in kids can also be assessed and cared for through oximetry.
Recording oximeters cost a bit higher because of the additional capability. They are available at different prices depending on the level of complexity. They can be bought from any store that stocks medical equipment.
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 gadget comprises of two light emitting diodes that emit infrared and red radiations. When in use, the diodes must be placed directly opposite to their respective detectors. The detectors and the diodes should then be separated by 5-10 mm of tissue. This is why an oximeter must be placed on an organ with thin tissues like an earlobe or fingertip. Sensors of the device are made into clips or wraps. Recent studies show that oxygen saturation inside the body cannot be measured effectively through earlobes.
These devices find use in any medical setting where blood oxygen saturation needs to be monitored at all times. Examples of such settings are operation rooms, recovery and treatment wards, emergency units, and intensive care. Accuracy of the readings is ensured by the patient staying calm and avoiding big moves. Devices that are able to record values are better because a history of values recorded within a given period can be maintained.
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 is used in diagnosis and management exacerbation of COPD chronic obstructive pulmonary disease in a place. The severity of an asthma attack can also be graded through this method. When the saturation level falls below 92 percent, it indicates that the asthma attack is life-threatening. The degree of seriousness of bronchiolitis in kids can also be assessed and cared for through oximetry.
Recording oximeters cost a bit higher because of the additional capability. They are available at different prices depending on the level of complexity. They can be bought from any store that stocks medical equipment.
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