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Doctor insights on: Spirometry

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Dr. Sheila Smith
1 Doctor shared a insight

Spirometry (Overview)

A spirometry is a measurement of velocity (speed) of air coming in & out of the lungs which equals the diameter of the airways. This an indirect measument of the lung function diffeent patterns are posible & direct us as specialist to diagnosed or suggest certain conditions.


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What is spirometry with bronchodilators and what info does it tell you?

What is spirometry with bronchodilators and what info does it tell you?

Asthma lung function: Spirometry measures how well & how quickly you can fill & empty your lungs. When asthma is present you may not be able to empty your lungs as fast as usual. This is easily recorded using a spirometer. After the initial test you are given a bronchodilator & the test is repeated. An improvement of 12% of more is considered evidence of "reversible bronchospasm" and consistent with asthma. ...Read more

Dr. Sheila Smith
1 Doctor shared a insight

Spirometry (Overview)

A spirometry is a measurement of velocity (speed) of air coming in & out of the lungs which equals the diameter of the airways. This an indirect measument of the lung function diffeent patterns are posible & direct us as specialist to diagnosed or suggest certain conditions.


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What does it mean to get spirometry done?

What does it mean to get spirometry done?

Respiratory Function: Spirometry is performed to assess lung function. There are certain "normal" values for the amount of air a patient a patient can forcefully exhale in one second from a maximum full breath in (fev!), the volume of a full breath (tlc), volume of air exhaled in normal breathing (tv or tidal volume), and many others. Deviation from expected normal could indicate disease. ...Read more

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Can you tell me how spirometry aid in their diagnosis?

Can you tell me how spirometry aid in their diagnosis?

Spirometry: Spirometry is a test performed used to evaluate for lung disease. It measures flow of air over time. It helps in diagnosis and management of diseases such as asthma, emphysema and chronic bronchitis. Sometimes further testing with lung volumes and diffusion capacity are ordered (called complete PFT). This complements the evaluation, helps with other diseases ie. Fibrosis! Hope this helps. ...Read more

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Is spirometry used in critical care only to measure lung function?

Is spirometry used in critical care only to measure lung function?

Rarely used: Spirometry is a test of lung physiology usually performed in outpatient settings, not in an icu. I can think of a few times when we've used it to assess a patient's ability to breathe when they have neuromuscular disease, but it's not generally a tool we'd use in an icu. ...Read more

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What causes recurrent pleurisy, with consistent pain in the lower rib cage that is not effected by breathing? Clear xray, spirometry good

What causes recurrent pleurisy, with consistent pain in the lower rib cage that is not effected by breathing? Clear xray, spirometry good

Something else: If this is not affected by breathing, it is not likely from pleurisy but from something else at the lower rib cage. If your family doctor can't help you, get a second opinion. ...Read more

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What do you suggest if my spirometry result looks bad isn't it?

How Does It Look Bad: Spirometry can show many different lung problems. It is impossible to tell you more without seeing the numbers. ...Read more

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Vital capacity changed slightly, suggesting mild respiratory disturbance conductance (dvr) respiratory tract revealed. Result of spirometry, it means?

Vital capacity changed slightly, suggesting mild respiratory disturbance conductance (dvr) respiratory tract revealed. Result of spirometry, it means?

Makes no sense: This sounds like a computer generated report that might have been mis-interpreted by you. Regardless, minor changes in pfts cannot be interpreted out of context, just like strange noises your car makes cannot be diagnosed without looking at the car. ...Read more

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Does a normal spirometry rule out asthma?

Does a normal spirometry rule out asthma?

No, but less severe: Normal spirometry is the usual finding with intermittent & mild persistent asthma - at least when symptoms of asthma are not present. Spirometry can still be useful to diagnose asthma in these situations. A significant increase in lung function within the normal range after inhaling albuterol is associated with asthma. You can also provoke asthma using methacholine measuring the effect with spiro. ...Read more

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What does it mean to get spirometry done?

Respiratory Function: Spirometry is performed to assess lung function. There are certain "normal" values for the amount of air a patient a patient can forcefully exhale in one second from a maximum full breath in (fev!), the volume of a full breath (tlc), volume of air exhaled in normal breathing (tv or tidal volume), and many others. Deviation from expected normal could indicate disease. ...Read more

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Where do people get spirometry testing done?

With a lung speciali: Lung specialist can perform sim[ple & complex studies to see & measure the lung function. ...Read more

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What is the definition or description of: spirometry?

Simple lung function: A spirometry is a measurement of velocity (speed) of air coming in & out of the lungs which equals the diameter of the airways.
This an indirect measument of the lung function
diffeent patterns are posible & direct us as specialist to diagnosed or suggest certain conditions. ...Read more

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What do you suggest if my spirometry result looks bad isn't it?

How Does It Look Bad: Spirometry can show many different lung problems. It is impossible to tell you more without seeing the numbers. ...Read more

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Had spirometry test today and it came out moderately severe obstruction. What does it mean? Is it bad?

Had spirometry test today and it came out moderately severe obstruction. What does it mean? Is it bad?

PFT: Ask them if they perform a separate test after you inhale a bronchodilator that helps open your airways. Do you smoke? It could mean you have
copd (emphysema and /or chronic bronchitis., asthma, reactive airways disease (similar to asthma) or more rare conditions. ...Read more

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My spirometry:slight restrictive shape of curve. Moderate expiratory limitation. Examination for extrathoracic obstruction & expiratory trachealstenosis?

My spirometry:slight restrictive shape of curve. Moderate expiratory limitation. Examination for extrathoracic obstruction & expiratory trachealstenosis?

HRCT: Extrathoracic obstruction may result in changes in airflow both on inspiration and expiration depending on where the obstruction is located. If your physician is investigating an extrathoracic cause, an HRCT is indicated. Sometimes enlarged lymph nodes may impinge on the airway as one possible cause. The restriction is mild and may be due to a number of causes such as fibrosis or scarring. ...Read more

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Can you tell me how spirometry aid in their diagnosis?

Spirometry: Spirometry is a test performed used to evaluate for lung disease. It measures flow of air over time. It helps in diagnosis and management of diseases such as asthma, emphysema and chronic bronchitis. Sometimes further testing with lung volumes and diffusion capacity are ordered (called complete PFT). This complements the evaluation, helps with other diseases ie. Fibrosis! Hope this helps. ...Read more

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If I have a cold, the spirometry test may result changed?

If I have a cold, the spirometry test may result changed?

Sure: Anything that affects one's breathing can also affect the spirometry test results. A person with underlying asthma symptoms, who catches a cold, will likely display worse spirometry readings due to increased asthma symptoms. ...Read more

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Hi, What is the meaning of normal spirometry - TLCO was reduced to 65% and DLCO/VA at 76%. Many thanks.?

Mgt: Your pulmonary testing has many components which are interpreted and then reported in summary, It would be helpful to upload the actual test to an inbox consultation.
From your description, there is no evidence of airflow obstruction and the DLCO when adjusted for volume is normal. There is also an adjustment for Hemoglobin on the report itself. ...Read more

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How bad does it mean when spirometry results only show the number 300 ml (vital capacity)? What is the average normal value for spirometry test?

Depends on: The predicted normal lung function results are based on age, sex, ethnicity, gender, and height. Thus the normal value varies among individuals. You must have misread your vital capacity since no adult can live with a 300 ml vital capacity. Could it be 3, 000 ml? ...Read more

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Pulmonary Function Test (Definition)

Pulmonary function tests is a term used to describe a group of tests done to determine lung function. Spirometry measures the amount of air that can be taken in as well as the flow rate of forcefully exhaled air. A graph is generated and can be used to determine lung function. Likewise lung volumes and diffusing capacity determine the capacity as well as ...Read more


Spirometer (Definition)

This device measures a person's ability to breathe in and out -- how much air, how quickly, for how long, how much air is left behind, etc. This provides some information for diagnosis and determining severity of ...Read more