Q:

Surgical removal of one lung reduces the

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 Surgical removal of one lung reduces the.


  1. FEV1 by about 10 per cent.
  2. Percentage saturation of arterial blood with oxygen.
  3. Exercise tolerance.
  4. Residual volume.
  5. Ventilation/perfusion ratio by about 50 per cent.

All Answers

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A. False It reduces it by at least half.

B. False A single lung can maintain normal oxygenation at rest.

C. True Maximum ventilation and maximum oxygen uptake are reduced.

D. True It leads to a restrictive lung disease pattern.

E. False The ratio is little affected.

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