Correct!
4. 1 and 3

Her dyspnea appears to be related to a pulmonary problem. Therefore, pulmonary function testing is indicated. Her pulmonary function tests are shown in Figure 2.

Figure 2. Complete pulmonary function testing. The flow-volume loop is shown on the right.

There was a question of pulmonary embolism and a thoracic CT scan was performed (Figure 3).

Figure 3. Selected images in lung windows from the thoracic CT scan.

Which of the following are true regarding the pulmonary function testing and thoracic CT scan? (Click on the correct answer to proceed to the fourth of five panels)

1. The pulmonary function testing and CT scan are normal
2. The pulmonary function testing shows mixed obstruction and restriction and there are small nodules on the CT scan
3. The pulmonary function testing shows nonreversible airway obstruction and the CT scan shows decreased vascular markings consistent with emphysema
4. The pulmonary function testing shows restrictive lung disease and the CT scan shows honeycombing consistent with pulmonary fibrosis
5. The pulmonary function testing shows reversible airway obstruction and the CT scan shows hyperinflation consistent with asthma

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