27. Obstructive vs. restrictive lung disease Flashcards Preview

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Flashcards in 27. Obstructive vs. restrictive lung disease Deck (7):
1

restrictive vs obstructive according FEV1

obstuctive FEV is MORE dramtically reduced compared to FCV

2

restrictive vs obstructive according spirometry loop

obstuctive --> loop shifts to left
restrictive --> loop shifts to right

3

• In a normal, well-functioning lung, what percent does the FEV1:FVC ratio equal?

80%

4

• In ____ (obstructive/restrictive) lung disease, the FEV1:FVC ratio and lung volumes are increased.

Obstructive

5

• In ____ (obstructive/restrictive) pulmonary disease, the FEV1:FVC ratio and lung volumes are decreased.

Restrictive

6

• A COPD patient has PFTs performed. What would you expect his TLC, FRC, and RV to be compared to normal?

In obstructive lung disease, TLC, FRC, and RV are all increased

7

• A patient with silicosis has PFTs performed. What would you expect his FEV1 and FVC to be compared to normal?

In restrictive lung disease, both FEV1 and FVC are reduced