By vgreene, 6 November, 2014 If FEV1 ≥50% predicted1 w/ 0-1 exacerbation/yr2 (none requiring hospitalization): Category B = more sx, low exacerbation risk
By vgreene, 6 November, 2014 If ancestry from particularly high-prevalent A1AT-deficiency area:5 WHO recommends A1AT test6
By vgreene, 6 November, 2014 If assessing disability: Paced shuttle walk test or unpaced 6-min walk test.4 Cycle/treadmill ergometry used to eval coexisting/alternative dx (eg, CV dz)
By vgreene, 6 November, 2014 Imaging: CXR not useful for COPD dx; may exclude alternative dx or establish resp/CV comorbidities. CT not routine; may help DDx if COPD in doubt