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Which of the following are considered general purposes of performing pulmonary function tests (pfts)? 1. the functional status of the lungs 2. the diffusion characteristics of the alveolar-capillary membrane 3. how much and how fast gas can be moved into and out of the lungs 4. the specific diagnosis of pulmonary disease

During polarization,potassium has a blank charge,sodium has a blank ch arge ,and calcium has a b l ank. charge

Which of the following is a symptom of clinical depression? feeling disconnected extreme bitterness yearning for the one who died reduced functioning