A nurse is auscultating the lungs of a client and hears low-pitched, soft breath sounds over the posterior lower lobes and inspiration that is longer than expiration. How should the nurse interpret these findings?

A) These sounds are normally auscultated over the trachea: This is incorrect. The tracheal breath sounds are harsh, loud, and high-pitched, typically heard over the trachea and larynx. These characteristics differ from the soft, low-pitched sounds described in the question, which are more consistent with vesicular breath sounds. B) These are bronchial breath sounds and normal in that location: This is incorrect. Bronchial breath sounds are typically heard over the trachea and larynx, not the lower lobes of the lungs. Bronchial sounds are loud, high-pitched, and have a longer expiration phase compared to inspiration, unlike the low-pitched, soft sounds with longer inspiration that are heard in the lower lobes. C) These are bronchovesicular breath sounds and normal in that location: This is incorrect. Bronchovesicular breath sounds are a mix of bronchial and vesicular sounds, with inspiration and expiration of about equal duration. They are typically heard over the major bronchi, near the sternum and between the scapulae, rather than over the posterior lower lobes. The description in the question suggests vesicular breath sounds, which have a longer inspiration phase. D) These are vesicular breath sounds and normal in that location: This is the correct answer. Vesicular breath sounds are soft, low-pitched, and typically heard over the peripheral lung fields, including the posterior lower lobes. These sounds have a longer inspiration phase than expiration and are considered normal in this location. The description in the question fits the characteristics of vesicular breath sounds perfectly.