To assess for the presence of egophony, which instruction should the nurse give the client who has a lung abscess?

Choice A rationale Whispering "one, two, three" is a technique used to assess for whispered pectoriloquy. This phenomenon occurs when whispered words are heard distinctly through the stethoscope, indicating consolidation in the lung parenchyma. While useful for identifying lung pathology, it specifically targets sound transmission of quiet speech, not the characteristic "E" to "A" sound change of egophony. Choice B rationale Breathing in and out during auscultation allows the nurse to listen to normal breath sounds and detect adventitious sounds like crackles, wheezes, or rhonchi, which are indicative of various respiratory conditions. However, this general breathing instruction does not specifically elicit the voice changes required to assess for egophony, which involves vocalization. Choice C rationale Egophony is an abnormal voice sound characterized by a nasal or bleating quality, often described as an "E" sounding like "A.”. This phenomenon occurs due to altered sound transmission through consolidated lung tissue, which acts as a filter, preferentially transmitting higher frequencies and altering vowel sounds. Instructing the client to repeat "E" allows the nurse to identify this specific acoustic change. Choice D rationale Repeating "99" during auscultation is the instruction given to assess for bronchophony. Bronchophony is present when spoken words are heard more loudly and clearly through the stethoscope over areas of lung consolidation, indicating enhanced sound transmission due to increased tissue density. While both egophony and bronchophony suggest consolidation, they are distinct auditory phenomena elicited by different vocalizations.