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. Author manuscript; available in PMC: 2014 Apr 26.
Published in final edited form as: J Asthma. 2013 Sep 19;50(10):1056–1061. doi: 10.3109/02770903.2013.834504

Table 1.

Modified Wood’s Clinical Asthma score (M-WCAS).

0 0.5 1 2
SatO2 SatO2 ≥ 95% in room air 95% > SatO2 > 90% in room air SatO2 ≥ 90%, with FiO2 > 0.21 SatO2 < 90, with FiO2 > 0.21
Inspiratory breath sounds Normal Slightly unequal Markedly unequal Decreased/absent
Expiratory wheezing None Mild Moderate Marked
Accessory muscles None Mild Moderate Maximal
Cerebral function Normal Agited when disturbed Depressed/agitated Markedly depressed, coma