For example, when it comes to heart disease, auscultation is very important, and within auscultation, the intensity, frequency, rhythm, and murmurs of heart sounds are the most crucial. Meanwhile, percussion of the heart's boundaries does not seem that important.
Therefore, Yang Ping selectively retains traditional physical examinations instead of mechanically copying them, such as the percussion of heart boundaries, which are definitely not as accurate as surface ultrasound examinations. That was a necessary measure in the past when various examinations were less developed, completing percussion of heart boundaries was time-consuming and labor-intensive, and it did not provide accurate boundaries. This kind of examination is generally done in special situations.
