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Spirometry Flashcards


FEV1 #flashcard #PhD #spirometry #clinical #copd Forced Expiratory Volume in 1 second. Can be measured pre- and post-bronchodilator. Normalised: FEV1 % predicted. There are multiple ways to calculate this from FEV1 in liters. We use GLI-2012 (Quanjer), not NHANES III (Hankinson). Takes into account ethnicity, gender, height and age.


FEV1/FVC #flashcard #PhD #spirometry #clinical Also known as Tiffeneau-Index. This is the fraction of how much of your lung capacity are able to exhale in 1 second. Normal values are between 0.7 and 0.8. Used for COPD diagnosis (FEV1/FVC < 0.7)


FVC #flashcard #PhD #spirometry #clinical #copd Forced Vital Capacity Normalised: FVC % predicted.


RV #flashcard #PhD #spirometry #clinical Residual Volume Normalised: RV % predicted.


TLC #flashcard #PhD #spirometry #clinical Total Lung Capacity Normalised: TLC % predicted.


Diffusion DLCO #flashcard #PhD #spirometry #clinical Diffusion capacity (DLCO also known as transfer factor) Normalised: Diffusion DLCO % predicted.


Diffusion KCO #flashcard #PhD #spirometry #clinical The transfer coefficient (KCO) is DLCOc corrected for alveolar volume. Normalised: Diffusion KCO % predicted.