Pulmonary function tests: are they really necessary?
Pulmonary function tests and clinical evaluation can complement one another, but neither can take the place of the other. The tests can provide objective, reproducible assessment of a patient's pulmonary status. Pulmonary function tests can support clinical diagnoses, quantify the severity and variability of the disorder, and can assist early intervention by indicating problems likely to arise later in the course of the disease.
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