Using the following lung volumes, calculate this persons FEV1 / FVC ratio. What this person's pulmonary function be clinically classified: normal, obstructive, or restricted?                TLC = 5.2 L                 FVC = 3.8                 TV = 0.5 L                 ERV = 1.1 L                 IRV = 2.2 L                 This person forcefully expired 2.4 L in one second. according to reference material, normal VC for this person is 3.6 L

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