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Have Lupus. Diagnosed Small Airway Disease Not Asthma. Lung Volumes Show Significantly Decreased Functional Residual Capacity. Menaing?
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my results say this "spirometry showed a forced vital capacity of 3.5 L which is 95% of predicted and FEV1 2.8L which is 96% of predicted FEV1/FVC is 81% The mid flow rates are moderately decreased. Significant improvement seen in mid flow rates with bronchodilator.
The lung volume shows normal vital capacity and total lung capacity . The functional residual capacity is severely impaired.
The diffusion is mildly impaired but when corrected to alveolar volume it is normal.
Conclusion.
1. spirometry and flow volume loop show small airway disease; significant improvement seen in mid flow rates with administration of bronchodilators
2.lung volumes show significantly decreased fuctional residual capacity , but otherwise normal
3. The diffusion is mildly impaired, but when corrected to aleveolar volume it is normal
Small airway disease, low FRC occ.feature of lupus
Detailed Answer:
Hello XXXXXXX
Welcome to Healthcare Magic and thank you for writing to us.
Lupus is a multisystem disease and occasionally the lungs are not spared. You tend to lose the lung volumes, (Chest X XXXXXXX shows small lungs), then decreased oxygenation (as seen in diffusion capacity, or DLCO).
You may have asthma/COPD on top of this or in isolation but as bronchodilators are having a good effect, I would suggest you discuss this again with your doctor to prescribe you one, especially if you feel short of breath.
POTS is not a contraindication to bronchodilator use, but depending on the choice of the inhaler, you should be fine.
The good news for you is that the lung volumes are good, diffusion capacity when corrected to alveolar vlume (DLCO corr AV) is normal, which means oxygenation is good.
Keep the lupus under control. This is not suggestive of ILD.
Best Wishes.
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so do i have COPD/Asthma
or is lupus destroying my lungs? im very confused
it says my diffussion is good and my pulse ox is always good :/ i dont knwo what to do
FRC is compliance of lung and chest wall
Detailed Answer:
The functional residual capacity is what remains in the lung at the end of a normal expiration. This is determined by the compliance of the lung and chest wall.
See more here:
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A low FRC is not indicative of development of lung scarring.
Normal DLCO is good, so lupus has NOT destroyed your lungs.
A good response to bronchodilators usually indicates reversible airway disease, as seen in asthma.
Hence, my suggestion to go for combination inhalers (steroids + long acting beta agonists).
Best Wishes.
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Yes, a 2nd opinion plus Allergy opinion is reqd
Detailed Answer:
Yes, I would think discussing the pros and cons of various lung medications is required plus checking the current list of medications you are now on.
Allergy/Immunology will help you understand if fungal or mold allergies are causing the asthma, in which case identifying and treating this (plus avoidance) will help the airways.
Best Wishes.
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