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Table 3 Lung diffusing capacity and pulmonary blood flow

From: Influence of resting lung diffusion on exercise capacity in patients with COPD

  Mean ± SD Percent predicted or (Range)
Single Breath DLCO (SBDLCO, ml/min/mmHg) 13.2 ± 5.5 58 ± 23 (31 –112)
Intra Breath DLCO (IBDLCO, ml/min/mmHg) 9.7 ± 5.9 (1.3 – 27)
IBDLCO/SBDLCO (%) 71 ± 26 (20 – 110)
Pulmonary Blood Flow (Qc, L/m, measured) 4.8 ± 0.9 (3.3 – 6.8)
Pulmonary Blood Flow –Cardiac output, (L/m, Predicted) 6.3 ± 0.4 (5.4 – 7.1)
SBDLCO/Qc ratio 2.8 ± 1.2 (1.2 – 5.7)
Hgb (g/dl) 13.5 ± 1.7 (11–17)
  1. Pulmonary Blood Flow measured with soluble gas method. Cardiac output estimated based on age, gender, BSA, from Ref (William LR). Qc = Pulmonary Blood Flow