What is the role of pulmonary function testing (PFT) in the workup of relapsing polychondritis (RP)?

Updated: Dec 06, 2018
  • Author: Nicholas Compton, MD; Chief Editor: Herbert S Diamond, MD  more...
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Pulmonary function testing (PFT) with flow-volume loops is strongly recommended in patients who present with respiratory symptoms, since PFT may assist in the differential diagnoses and provide information about severity of the disease. This may also be used to monitor patients' disease activity. PFT in patients with relapsing polychondritis who have respiratory involvement demonstrates a nonreversible obstructive pattern with collapse and stenosis of the airways. The decrease in forced expiratory volume in 1 second correlates with the degree of dyspnea.

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