Coarse crackles are associated with:
1. inspiration typically.
2. air passing through an airway intermittently occluded by mucus.
3. bronchial asthma.
4. expiration typically.
a. 2, 4
b. 3, 4
c. 2, 3, 4
d. 1, 2, 3
A
Coarse crackles are associated with air passing through an airway intermittently occluded by mucus; they are more typically heard during inspiration, not expiration. Wheezes are an expiratory sound associated with bronchial asthma.
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