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Table 3 Mean (FNO), inspiratory (FINO) and expiratory (FENO) intratracheal NO concentrations, mean NO2 intratracheal concentrations and methemoglobin (MetHb) blood levels measured in 16 patients with ARDS receiving increasing concentrations of inhaled NO at FiO2 0.85

From: Inhaled nitric oxide in acute respiratory distress syndrome with and without septic shock requiring norepinephrine administration: a dose–response study

     NO (ppm)    
  0.15 0.45 1.5 4.5 15 45 150
FNO (ppm) 0.102 ± 0.004 0.32 ± 0.011 1.05 ± 0.02 2.98 ± 0.06 10.4 ± 0.2 26 ± 0.8 100 ± 4
FINO (ppm) 0.15 ± 0.006 0.45 ± 0.073 1.5 ± 0.2 4.5 ± 0.3 15.3 ± 1.2 45.2 ± 0.9 nd
FENO (ppm) 0.004 ± 0.0005 0.1 ± 0.02 0.6 ± 0.05 1.95 ± 0.1 6 ± 0.2 17 ± 0.9 nd
NO2 (ppm) 0.02 ± 0.004 0.03 ± 0.01 0.03 ± 0.01 0.06 ± 0.02 0.3 ± 0.1 0.8 ± 0.3 4 ± 0.9
MetHb (%) 0.9 ± 0.1 1 ± 0.1 0.9 ± 0.1 0.9 ± 0.1 1 ± 0.1 1.4 ± 0.2 3.8 ± 0.5
  1. Values are given as mean ± SEM. nd = not determined.