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Old 05-28-2012
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Lungs Residual volume in interstitial lung disease!

i have 2 queries...

Quote:
why RV increases in ILD?
Quote:
why RV/TLC increases in ILD ?
please any1 who knows do share the reason..very imp stuff
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Old 05-28-2012
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Residual Volume decreases in Interstitial Lung Disease (Restrictive).

RV/TLC is probably the same since TLC also decreases proportionally with RV. Don't think this ratio is "vry imp stuff."
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Old 05-28-2012
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Quote:
Originally Posted by No_BS View Post
RV/TLC is probably the same since TLC also decreases proportionally with RV. Don't think this ratio is "vry imp stuff."
this ratio differentiates cause of restrictive lung dz...if it is ILD or Neuromuscular...
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RV would increase if there is an obstructive process such as emphysema
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why RV increases in ILD? it doesnt. it decreases.

why RV/TLC increases in ILD ?
because TLC decreases in restrictive lung diseases.
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Quote:
Originally Posted by Dr.NickRiviera View Post

why RV/TLC increases in ILD ?
because TLC decreases in restrictive lung diseases.
RV also decreases as you said. so ?

is that TLC decreases more than RV , that the ratio increases...please help
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Quote:
Originally Posted by tyagee View Post
is that TLC decreases more than RV , that the ratio increases...please help
yep, thats right
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IF you get a question like this, Im sure they will give you numbers where you can figure it out. I wouldnt worry about this minutiae. Just know RV is decreased in ILD. Move on.
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