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2. Copyright © 2010 Massachusetts Medical Society. All rights reserved. Published by Massachusetts Medical Society. 2 Figure 1 Emergency Treatment of Asthma. Lazarus, Stephen New England Journal of Medicine. 363(8):755-764, August 19, 2010. Figure 1. Initial Assessment of a Patient Presenting to the Emergency Department with Asthma.Adapted from the National Asthma Education and Prevention Program Expert Panel Report 3.3 FEV1 denotes forced expiratory volume in 1 second, ICU intensive care unit, PaCO2 partial pressure of arterial carbon dioxide, PaO2 partial pressure of arterial oxygen, PEF peak expiratory flow, and SaO2 arterial oxygen saturation.

3. Copyright © 2010 Massachusetts Medical Society. All rights reserved. Published by Massachusetts Medical Society. 3 Table 1 Emergency Treatment of Asthma. Lazarus, Stephen New England Journal of Medicine. 363(8):755-764, August 19, 2010. Table 1. Medications for Treatment of Asthma Exacerbation in the Emergency Department.

4. Copyright © 2010 Massachusetts Medical Society. All rights reserved. Published by Massachusetts Medical Society. 4 Figure 2 Emergency Treatment of Asthma. Lazarus, Stephen New England Journal of Medicine. 363(8):755-764, August 19, 2010. Figure 2. Continued Management of Asthma in the Emergency Department.Adapted from the National Asthma Education and Prevention Program Expert Panel Report 3.3 Heliox is a mixture of helium and oxygen, usually 79% and 21%, respectively, whose density is about one third that of air. FEV1 denotes forced expiratory volume in 1 second, PaCO2 partial pressure of arterial carbon dioxide, PEF peak expiratory flow, and SaO2 arterial oxygen saturation.

5. Copyright © 2010 Massachusetts Medical Society. All rights reserved. Published by Massachusetts Medical Society. 5 Table 2 Emergency Treatment of Asthma. Lazarus, Stephen New England Journal of Medicine. 363(8):755-764, August 19, 2010. Table 2. Recommendations for Discharge from the Emergency Department.