Spirometry is a medical procedure used to measure lung functions, specifically the volume and speed of the air one breathes in and out. It is one of pulmonary function tests and it is also referred to as measuring of breath. Spirometry is performed using pieces of equipment called spirometers. There are many version and models of these apparatus in the market, giving a buyer a wide range of options to choose from.
The function of this apparatus is determining abnormalities in ventilation patterns and air movements out and into the lungs. The devices detect two forms of abnormalities in ventilation pattern. The two abnormalities in ventilation pattern are restrictive and obstructive. Various models employ different measurement techniques to accomplish their task. Some of those methods are, use of water gauges, pressure or ultrasonic transducers.
These gadgets continue getting better as technology improves. At the present time several makes are in utilization in different around the globe. Among the key models are windmill-type, incentive, whole body plethymograph, pneumotachometer, peak flow type, fully electronic, and tilt compensated model. Of all the models body plethymograph has the highest accuracy with high precision in values taken. The great precision is partially because patients get enclosed in small spaces during the process.
The pneumotachometer gauges the flow rate of air by employing a fine mesh. The pressure of inhaled or exhaled gases is detected as they flow over the fine mesh, allowing measurement of their rate of flow. Patients are allowed to breathe in fresh air as the process continues. That is an advantage that lacks in most other models.
Previous models have been improved to come up with the fully electronic version, which does not use moving parts or fine meshes. In fully improved models, techniques like ultrasonic transudcers and pressure difference are used to gauge rate of air flow. Accuracy is greatly improved because no friction due to resistance is experienced since no moving parts are present. Disposable air flow channels in the products improve hygiene.
Incentive models are the most commonly used models in most settings. They are meant to improve the breathing of a patient over a long time of usage. They are normally placed on a bench or a table next to a bed. The patient should inhale and exhale through the mouthpiece for a given number of times every hour as per the instructions of the doctor. The calibrations on the device indicate any improvements the patient is making over time.
Windmill-type version is used to measure forced vital capacity without using water. It is lighter and more portable in comparison to water-tank model. The measurements in this device are broad running from 1000 to 7000 ml. The presence of rotating discs in the apparatus requires it to be held in a horizontal position when recording measurements. Tilt-compensated type has 3D sensing mechanics that allow patients to lean backwards or forwards while in use.
The success of the testing is determined by cooperation given to the doctor by the patient. Normally values acquired from one test contain errors and are therefore not used as final results. Three repetitions must be done obtain final figures. Little children cannot understand directions cannot be tested because they cannot give correct figures.
The function of this apparatus is determining abnormalities in ventilation patterns and air movements out and into the lungs. The devices detect two forms of abnormalities in ventilation pattern. The two abnormalities in ventilation pattern are restrictive and obstructive. Various models employ different measurement techniques to accomplish their task. Some of those methods are, use of water gauges, pressure or ultrasonic transducers.
These gadgets continue getting better as technology improves. At the present time several makes are in utilization in different around the globe. Among the key models are windmill-type, incentive, whole body plethymograph, pneumotachometer, peak flow type, fully electronic, and tilt compensated model. Of all the models body plethymograph has the highest accuracy with high precision in values taken. The great precision is partially because patients get enclosed in small spaces during the process.
The pneumotachometer gauges the flow rate of air by employing a fine mesh. The pressure of inhaled or exhaled gases is detected as they flow over the fine mesh, allowing measurement of their rate of flow. Patients are allowed to breathe in fresh air as the process continues. That is an advantage that lacks in most other models.
Previous models have been improved to come up with the fully electronic version, which does not use moving parts or fine meshes. In fully improved models, techniques like ultrasonic transudcers and pressure difference are used to gauge rate of air flow. Accuracy is greatly improved because no friction due to resistance is experienced since no moving parts are present. Disposable air flow channels in the products improve hygiene.
Incentive models are the most commonly used models in most settings. They are meant to improve the breathing of a patient over a long time of usage. They are normally placed on a bench or a table next to a bed. The patient should inhale and exhale through the mouthpiece for a given number of times every hour as per the instructions of the doctor. The calibrations on the device indicate any improvements the patient is making over time.
Windmill-type version is used to measure forced vital capacity without using water. It is lighter and more portable in comparison to water-tank model. The measurements in this device are broad running from 1000 to 7000 ml. The presence of rotating discs in the apparatus requires it to be held in a horizontal position when recording measurements. Tilt-compensated type has 3D sensing mechanics that allow patients to lean backwards or forwards while in use.
The success of the testing is determined by cooperation given to the doctor by the patient. Normally values acquired from one test contain errors and are therefore not used as final results. Three repetitions must be done obtain final figures. Little children cannot understand directions cannot be tested because they cannot give correct figures.
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