Which two main techniques are commonly used to assess a patient's lung sounds during a physical assessment?
Auscultation and percussion
The four classic techniques of a physical chest exam are inspection, palpation, percussion and auscultation.
For lung sounds, auscultation with a stethoscope detects breath sounds and adventitious sounds, while percussion detects areas of dullness or hyper-resonance that locate pathology.
Inspection and palpation gather useful chest data but do not themselves give "lung sounds".
Hence, Auscultation and percussion.
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