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Table 5 Correlation between rac-albuterol dose utilisation [median (range)] and serum albuterol enantiomer levels [median (range)], among acute COPD subjects

From: Albuterol enantiomer levels, lung function and QTc interval in patients with acute severe asthma and COPD in the emergency department

 

Serum level

Albuterol utilisation a

5.0 (0.0-40.0) mg

(R)-albuterol

2.1 (0.0-16.7) ng/mL

r2 = 0.34 *

(S)-albuterol

3.5 (0.0-36.1) ng/mL

r2 = 0.36 *

Total albuterol

5.8 (0.0-53.0) ng/mL

r2 = 0.36 *

  1. aDose administered by health-care officer, as recorded in hospital medical history
  2. *p < 0.01