Spirometry refer to a clinical exercise through which functions of the lung are gauged, specifically the velocity and volume of air breathed. It is also known by the phrase measuring of breath and it stands among PFTs, pulmonary function tests carried out on patients diagnosed with lung conditions. The apparatus used perform do the exercise are called spirometers. Customers have a variety of gadgets to pick from since there are numerous makes on the current market.
The work of this equipment is to determine abnormal ventilation patterns and how air moves in and out of the lungs. This device is normally able to detect two kinds of abnormal ventilation patterns. The first abnormal pattern is restrictive while the second one is obstructive. Different device models use different measurement methods to achieve their functions. Some of most common methods include use of water gauge, ultrasonic, and pressure transducers.
As technology continues to advance, so does these devices. Currently there are several models in use in different parts of the world. Some of major models include whole body plethymograph, pneumotachometer, peak flow type, windmill-type, incentive, fully electronic, and tilt compensated model. Whole body plethymograph is one of most accurate models, giving a very high level of accuracy in its readings. The person whose lungs are being assessed is enclosed in a small room.
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.
Fully electronic model is a complete improvement of other models because it does not have fine meshes or moving components. Rate of air flow is measured using methods such as pressure difference and ultrasonic transudcers. Lack of moving components improves the accuracy of these models because there is no friction or resistance. The hygiene is also improved since air flow channels used are disposable after use.
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 model can measure forced vital capacity without use of water. In comparison to the water-tank type, it is more portable and lighter. Measurements recorded are broad and range from 1000ml to 7000ml. When taking measurements, the apparatus must be maintained in horizontal position because it contains rotating discs. Tilt-compensated model contains 3D sensing mechanics, which allow backward or forward positions when in use.
The testing process is highly dependent on the cooperation of the patient. The values from one recording cannot be used because they may contain errors. That is the reason why the procedure is normally repeated at least three times. That is also the reason it cannot be used on small children who cannot follow instructions.
The work of this equipment is to determine abnormal ventilation patterns and how air moves in and out of the lungs. This device is normally able to detect two kinds of abnormal ventilation patterns. The first abnormal pattern is restrictive while the second one is obstructive. Different device models use different measurement methods to achieve their functions. Some of most common methods include use of water gauge, ultrasonic, and pressure transducers.
As technology continues to advance, so does these devices. Currently there are several models in use in different parts of the world. Some of major models include whole body plethymograph, pneumotachometer, peak flow type, windmill-type, incentive, fully electronic, and tilt compensated model. Whole body plethymograph is one of most accurate models, giving a very high level of accuracy in its readings. The person whose lungs are being assessed is enclosed in a small room.
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.
Fully electronic model is a complete improvement of other models because it does not have fine meshes or moving components. Rate of air flow is measured using methods such as pressure difference and ultrasonic transudcers. Lack of moving components improves the accuracy of these models because there is no friction or resistance. The hygiene is also improved since air flow channels used are disposable after use.
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 model can measure forced vital capacity without use of water. In comparison to the water-tank type, it is more portable and lighter. Measurements recorded are broad and range from 1000ml to 7000ml. When taking measurements, the apparatus must be maintained in horizontal position because it contains rotating discs. Tilt-compensated model contains 3D sensing mechanics, which allow backward or forward positions when in use.
The testing process is highly dependent on the cooperation of the patient. The values from one recording cannot be used because they may contain errors. That is the reason why the procedure is normally repeated at least three times. That is also the reason it cannot be used on small children who cannot follow instructions.
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