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Donnie Marshall

Louisville, KY, United States

Member since January 10, 2013

  • Most Important Parts On Spirometers

    Communication, Communication Design

    Spirometers are apparatus used to measure the volume of air inspired and expired by lungs. This process of measuring and determining lung functions is referred to as spirometry. It tries to determine the volume and speed of the air that gets in and out of the lungs. The equipment makes a record of these figures over a given period of time.

    Spirometer are among the devices used for basic PFTs pulmonary function tests. It is used in preliminary tests in patients with lung conditions. Spirometry is a tool used to generate pneumotachographs which help in the assessment of various lung conditions. Some of the conditions tested include asthma, cystic fibrosis, bronchitis, emphysema, COPD, and pulmonary fibrosis.

    Functions of spirometry are many running from measurement to treatment of conditions. It helps in management of asthma and its diagnosis. Respiratory diseases in people who experience symptoms such as shortness in breath may be detected. Such illnesses can also be differentiated whether they are being caused by cardiac disease or not. It also determines natural history of a disease in respiratory conditions. Restrictive and obstructive lung disease can be distinguished with ease.

    The device applied causes differences in forced volume vital capacities. The procedures for employing this equipment require individuals to breathe in and out as deep as they can manage. They then exhale into a sensor with a lot of force from lungs. The exhalation process needs to last as long as one can manage, most preferably 6 seconds. Exhalation could be followed fast by deep inhalation just in case upper airway obstruction requires to be gauged too.

    The forced exhalation has to come after a minute of quiet exhalation and inhalation from the sensors to establish tidal volume. Rapid breath also known as forced inspiratory might be necessary too. Soft nose clips are utilized in some cases if necessary to stop air from escaping through nostrils. Microorganisms are stopped from spreading by using filter mouthpieces. The procedure is repeated a minimum of 3 times to gain consistency.

    There are some limitations involved in this procedure that may only be made right by the clients. The patient is required to co-operate and put in efforts. This fact makes FVC measurements to always be underestimated, not over-estimated. There is also a limitation in the age. Patients have to be at least 6 years to be able to understand the procedure right. The person should also be mentally fit, comfortable, conscious, and unsedated to undertake the procedure.

    There are many sorts of spirometers including fully electronic models, peak flow meter, pneumotachometer, incentive, and whole body plethysmograph. Whole body plethysmographs provide accurate measurements for constituents of lung volumes in comparison with traditional versions. Patients are usually enclosed within small spaces when the tests are being made. A pneumotachometer measures gas flow rate by determining pressure differences across fine meshes.

    The major benefit of pneumotachometer spirometers is that patients are able to take in fresh air as they continue with the process. Fully electronic makes have been made in a way that fine meshes or moving components are not of much necessity. They use techniques like ultrasonic transducers to gauge the rate of airflow.

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My Interests

  • Industrial Design
  • Environmental Design
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  • Audio/Visual Design