If a bronchodilator is effective during bronchospasm, the peak inspiratory pressure is expected to?

If a bronchodilator is effective during bronchospasm, the peak inspiratory pressure is expected to?

• A. Increase
• B. Stay the same
• C. Decrease
• D. Vary unpredictably

Answer: (C)

When a bronchodilator is effective during bronchospasm, it alleviates the constriction of the airways, allowing for easier airflow. This leads to a reduction in airway resistance, which directly impacts the mechanics of breathing. As the airway resistance decreases, the peak inspiratory pressure— which is the maximum pressure required to initiate inhalation—will also decrease. In a state of bronchospasm, the airways are narrowed, and the respiratory muscles must generate more pressure to overcome this resistance. Once the bronchodilator takes effect and the airways widen, the effort required to achieve ventilation becomes less strenuous, resulting in a lower peak inspiratory pressure during measures of peak airway pressure on the ventilator or in spontaneous breathing. Therefore, when evaluating the impact of a bronchodilator on peak inspiratory pressure during an episode of bronchospasm, a decrease is expected due to the improved flow dynamics and reduced resistance.

When a bronchodilator is effective during bronchospasm, it alleviates the constriction of the airways, allowing for easier airflow. This leads to a reduction in airway resistance, which directly impacts the mechanics of breathing. As the airway resistance decreases, the peak inspiratory pressure— which is the maximum pressure required to initiate inhalation—will also decrease.

In a state of bronchospasm, the airways are narrowed, and the respiratory muscles must generate more pressure to overcome this resistance. Once the bronchodilator takes effect and the airways widen, the effort required to achieve ventilation becomes less strenuous, resulting in a lower peak inspiratory pressure during measures of peak airway pressure on the ventilator or in spontaneous breathing. Therefore, when evaluating the impact of a bronchodilator on peak inspiratory pressure during an episode of bronchospasm, a decrease is expected due to the improved flow dynamics and reduced resistance.