Which pulmonary function testing for status asthmaticus require body plethysmography?

Updated: Jun 17, 2020
  • Author: Constantine K Saadeh, MD; Chief Editor: John J Oppenheimer, MD  more...
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Findings may be diminished in other pulmonary function tests (eg, maximum expiratory flow rate, mid-maximum expiratory flow rate, forced vital capacity). Functional residual capacity and residual volume increase because of air trapping, However, these tests require the child being in a body plethysmograph, which is impractical in the severely ill child.

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