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FEV6

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  • Forced expiratory volume in 6 s (FEV6) is used as a surrogate for FVC
    • there is much evidence that FEV6 is equivalent to FVC and is easier to measure (1,2)
      • FEV6 may improve reproducibility with no significant loss of sensitivity or specificity
      • an electronic device for FEV1 measurement (FEV1 meter) is the same size as a peak flow meter and can be used for examination anywhere. Measurement can be performed easily and immediately; the device can be used to promote pulmonary function test and for screening purposes. The precision of the device has been assessed for FEV1 in pulmonary diseases
      • an electronic handy device for FEV1 and FEV6 measurement (FEV1/FEV6 meter) has been developed
      • a meta-analysis concluded that FEV(1)/FEV(6) is a sensitive and specific test for the diagnosis of airway obstruction. FEV(1)/FEV(6) can be used as a valid alternative for FEV(1)/FVC in the diagnosis of airway obstruction (3)

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