Which of the following pulmonary function tests are frequently ...

[EY67]

Which of the following pulmonary function tests are frequently used to determine tolerance to resectional surgery? 1. FEV1 2. FEF25 to 75 3. FVC 4. DLCO
 
  a. 1 only
  b. 1 and 4 only
  c. 2 and 4 only
  d. 2, 3, and 4 only

Question 2

Which of the following are common purposes for staging a case of lung cancer? 1. Selection of therapy 2. Assessment of extent of the disease 3. Prognosis 4. Etiology
 
  a. 2, 3, and 4 only
  b. 1, 2, and 4 only
  c. 3 and 4 only
  d. 1 and 2 only

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Answer to Question 1

ANS: B
To determine if an individual will tolerate lung resection surgery, reports of activity tolerance and pulmonary function testing are used. Although no one pulmonary function study or absolute cut-off has proven ideal, the FEV1 and diffusing capacity for carbon monoxide (DLCO) are the most frequently used measures.

Answer to Question 2

ANS: B
One of the major factors that determines the prognosis of lung cancer and guides the proper se-lection of treatment is the extent to which the cancer has spread in the lungs and throughout the body.