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Table 2 Correlation between rac-albuterol dose utilisation [median (range)] and serum albuterol enantiomer levels [median (range)] among acute asthma subjects

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

  

Albuterol utilisation

 

Serum level

Total dose utilisation a

20.0 (0.6-55.0) mg

Recorded dose utilisation b

15.0 (0.0-50.0) mg

(R)-albuterol

8.2 (0.6-24.8) ng/mL

r2 = 0.22

r2 = 0.54*

(S)-albuterol

20.6 (0.5-57.3) ng/mL

r2 = 0.50

r2 = 0.33

Total albuterol

28.9 (1.1-73.3) ng/mL

r2 = 0.43

r2 = 0.42

  1. Two-tailed Pearson correlation test
  2. aDose administered in the preceding 24 h, including dose administered prior to the hospital presentation
  3. bDose administered by health-care officer, as recorded in hospital medical history
  4. *p < 0.05