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preserved ratio impaired spirometry

Diagnostic criteria: - FEV1/FVC >= 0.7 - FEV1 less than 80% predicted Clinical significance: - associated with increased risk for mortality & adverse cardiovascular & respiratory outcomes [1]

Related

pulmonary function test (PFT)

General

sign/symptom

References

  1. Wan ES, Balte P, Schwartz JE et al. Association between preserved ratio impaired spirometry and clinical outcomes in US adults. JAMA 2021 Dec 14; 326:2287. PMID: 34905031 https://jamanetwork.com/journals/jama/fullarticle/2787116