Respiratory muscle weakness is associated with which of the following abnormalities? 1. Pulmonary embolism 2. Ventilatory insufficiency 3. Hypoxemia 4. Atelectasis
a. 4 only
b. 2, 3, and 4 only
c. 1 and 3 only
d. 1, 3, and 4 only
ANS: B
Of the many neuromuscular problems causing pulmonary dysfunction, respiratory muscle weak-ness that leads to atelectasis, hypoxemia, and ventilatory insufficiency is among the best recog-nized.
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