Correct!
5. All of the above

Her history, complaints of dyspnea, the presence of crackles on her physical examination and the abnormalities on her chest x-ray all suggest a chronic underlying interstitial process. Her PFTs and CT scan are shown in Figures 2 and 3.

Figure 2. Complete pulmonary function tests (PFTs).

Figure 3. Representative images in lung windows from thoracic CT scan.

Which of the following are true? (Click on the correct answer to be directed to the third of six pages)

1. The PFTs show mixed obstructive and restrictive disease and the CT scan shows honeycombing
2. The PFTs show obstructive disease and the CT scan shows emphysema
3. The PFTs show restrictive disease and the CT scan shows a reticulonodular pattern
4. The PFTs show restrictive disease and the CT scan shows honeycombing
5. The PFTs show restrictive lung disease and the CT scan shows emphysema

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