SOUND ANALYSIS

There are no crackles in this subject. The bar graph shows the crackle rate in each 1/3 of inspiration and expiration. Two top bar graphs represent lung apex, channels 1 and 2 on the right and channels 9 and 10 on the left. Two bottom bar graphs summarize information from the lung bases, microphones 3 through 7 on the right and 11 through 15 on the left. Since tracheal crackles are uncommon STG does not identify crackles at the trachea.


There are no wheezes in this subject. The bar graph shows the relative wheeze rate in each 1/3 of inspiration and expiration. The upper bar graph represents the tracheal microphone. Two middle bar graphs represent lung apex, channels 1 and 2 on the right and channels 9 and 10 on the left. The bottom bar graphs summarize information from the lung bases, microphones 3 through 7 on the right and 11 through 15 on the left.