Which of the following factors has minimal or no impact on the effectiveness of the patient's cough?
a. Lung recoil
b. Airways resistance
c. Lung volume
d. Pulmonary vascular resistance
ANS: D
The effectiveness of a cough depends on the individual's ability to take a deep breath, his or her lung recoil, the strength of his or her expiratory muscles, and the level of airway resistance.
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