Which condition occurs if the amount of calories eaten equals the amount of calories burned through daily activity? А lose body fat B gain weight с C maintain weight D lose muscle strength​

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