. Why is the sputum green? (1pt) 6. Typically, a pulmonary function test will not be given until about age 7. However, if Sam was given a pulmonary function test it will demonstrate a decreased FEV1 (forced expiratory volume in 1 second) and FVC (forced vital capacity). Based on these hypothetical pulmonary function test results, answer the following questions: a. What can you infer about the surface area for gas exchange in Sam’s lungs? (4pts) INCREASED or DECREASED b. What can you infer about the diffusion distance for gas exchange in Sam’s lungs? INCREASED or DECREASED c. Why does the presence of sputum relate to Sam’s pulmonary function tests?
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