What are some causes of dynamic hyperinflation? 1. Increased expiratory time 2. Increased airway resistance 3. Decreased expiratory flow rate
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3
ANS: C
In such patients, lower tidal volumes (6 to 8 ml/kg), moderate respiratory rates, and high inspira-tory flow rates (70 to 100 L/min) are recommended to avoid dynamic hyperinflation.
Health Professions
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