| egophony |
Case which is determined by having the patient say the letter "E", while you're listening through the stethoscope to a suspected area of involvement. If you are listening for an "E", and it comes through like "A", then egophony is present. What is happening is that the pure sound has become louder and more nasal in quality. It can be heard directly above an area of pleural effusion due to compression atelectasis of the lung.
출처: sprojects.mmi.mcgill.ca/mvs/GLOSSARY/E.HTM
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