PFTs (pulmonary function tests) are noninvasive examinations that demonstrate how effectively the lungs are functioning. The examinations gauge lung size, function, flow rates, and gas exchange. Your healthcare professional may use this information to diagnose and treat some lung conditions. There are two conditions that affect how air enters and leaves the lungs: Obstructive. This occurs when airway resistance makes it difficult for air to exit the lungs. Airflow is reduced as a result of this. Restrictive. This occurs when the chest muscles or lung tissue cannot expand sufficiently. Airflow issues result from this, mostly because of smaller lung capacities. Pulmonary function tests, or PFTs, may be performed for a variety of different reasons. They are occasionally performed on healthy individuals as a standard component of a physical. These are also often carried out to safeguard employee health in several work contexts (such as graphite factories and coal mines).
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