After auscultating a coarse low-pitched sonorous rattling in the left lower lobe, the nurse is concerned that the patient may be developing:
a. an accumulation of secretions in the larger air passages.
b. narrowing in the lower lobe of the lung.
c. irritation in the pleurae.
d. crackles in the left lower lobe.
A
Low-pitched sonorous wheezing sounds are caused by secretions accumulating in the larger air-ways. Narrowing of air passages will result in high-pitched wheezes. Irritation of pleurae will cause a pleural friction rub to be heard. Crackles are produced by air passing through moisture in the smaller airways.
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