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Doctor insights on: Spirometry Fev1

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My spirometry result are fvc 78% fev1 82% fev1/fvc 109% what does it mean ?

My spirometry result are fvc 78% fev1 82% fev1/fvc 109% what does it mean ?

Test interpretation: This test should be interpreted in the context of your history. Since you have normal airflow in the larger airways, I would recommend checking the smaller airway function values, and repeat testing. There is a range of normal values, and your own best value may be determined upon repeat testing. ...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


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My spirometry's come out as normal but was told it was upper boredline am confused its either normal or abnormal right ? Fev1 was 128 am 46 female

My spirometry's come out as normal but was told it was upper boredline am confused its either normal or abnormal right ? Fev1 was 128 am 46 female

No worries: Fev1 of 128% predicted (assuming the other numbers on your pft were also normal) would suggest normal lung function. The normal range for fev1 is 80-120% predicted, and normal values are based on your age, height and ethnicity. Depending on the set of predicted values that were used and the way spirometry was performed, this fev1 should not be a cause for concern. Talk to your lung doctor. ...Read more

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My spirometry test results . Do I have early emphysema? (my results) fvc 107% of predicted fev1 95% of predicted fev1/fvc 90% of predicted fef25/75 62% of predicted pefr 125% of predicted im a 45 year old male who quit smok

Spirometry: The large airways appear to be within normal limits but the fef25-75 is suboptimal. The fef25-75 is currently the best method to evaluate the small airways of which it appears that you do have some obstruction taking place. ...Read more

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Is exercise intolerance the first symptom of air trapping in lung? 43year male , 23 year smoker my spirometry result. Fvc 106% of predicted fev1 95% of predited fev1/fvc 73% fef25/75 62% of predicted ferf 125% of predicted will take the dlco and rv te

Is exercise intolerance the first symptom of air trapping in lung? 43year male , 23 year smoker
my spirometry result.
Fvc  106% of predicted
fev1 95% of predited
fev1/fvc  73%
fef25/75 62% of predicted
ferf  125% of predicted

will take the dlco and rv te

Follow up: These findings do indicate that there is mild airflow obstruction and involvement of the small airways. Your smoking history is significant and I hope that you have quite smoking and will avoid inhaling smoke. Your follow up study should include testing with and without a bronchodilator. This will help your physician determine responsiveness to the medication. ...Read more

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Feeling of tightness in chest. Spirometry reveals fvc 46% and fev1 47%. Ct scan shows plural thickening in lower region with calcification on rt side?

Breathing issues: It appears you have both functional and anatomical abnormalities. However based on the data that you provided it is impossible to determine the cause. Further investigation is needed. I suggest that you go back to the physician who ordered these tests and he may tell you what to do next. ...Read more

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Had my pulmonary function test. Fev1 117%, dclo 93%, rv 93%, erv 63%. Is this okay? I've been told i had air trapping before. I have sob on exertion.

Incomplete report: Another set of measurements which will help define whether there is air trapping is the RV/TLC ratio which should be listed on the report. It can be elevated in obstructive disease. I hope that this helps. ...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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Is spirometry always abnormal in asthmatics?

Is spirometry always abnormal in asthmatics?

No: Many patients with asthma have very normal lung function, especially children. An abnormal spirometry result can be helpful in diagnosing and treating asthma, but it is not essential for the diagnosis. ...Read more

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Is 82% spirometry, being an ex smoker, a sign of copd?

Is 82% spirometry, being an ex smoker, a sign of copd?

Possibly: Which part of the test was 82 %? An fev1 of 82% may indicate mild or early copd. ...Read more

Dr. Michael Gabor
48 doctors shared insights

Fev1 (Definition)

This is the forced expiratory volume in 1 second and is the amount of air one can rapidly expire after a deep breath in 1 second. It is a component of pulmonary function tests, and along with other aspects of the test can help diagnosis lung disease or the severity of certain kinds ...Read more


Spirometry (Definition)

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 ...Read more