![]() The data revealed a remarkable lack of variation within and between subjects, suggesting similar sites and mechanisms of production and transmission. These values showed no differences between subjects. Inspiration is normally 2-3 times the length of expiration. During expiration, sound intensity can quickly fade. They are lower-pitched, rustling sounds with higher intensity during inspiration. Five breaths from each subject were analyzed, and their spectra were similar and slightly skewed to the right. The sound signals were then subjected to the fast Fourier transform algorithm to obtain power spectra. The signals were digitized and subjected to three methods of heart sound cancellation: 75-Hz high-pass filtering (75 HF), ECG-triggered blanking (BL) and adaptive noise cancelling (AF). A nurse assessing a patients respiratory effort notes that the clients breaths are shallow and 8 per minute. What is a characteristic of vesicular breath sounds They are low-pitched, soft sounds heard over peripheral lung fields. Nonfiltered (NF) lung sounds from the apical area of the heart along with lung volumes and ECG signals were recorded from 5 normal subjects. The nurse is auscultating the lungs of a patient and detects normal vesicular breath sounds. ![]()
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