Which statement is TRUE regarding percussion of the abdomen?

A. Castell point is useful in assessing liver size.
B. Tympani or resonance is found with percussion over the liver.
C. Diffuse tympani of the abdomen is normal.
D. Dullness is noted over solid organs and tympani is noted over air in the bowels.
E. Dullness is noted over air in the bowels.

The true statement about percussion of the abdomen is that dullness is noted over solid organs and tympani is noted over air in the bowels, which helps in diagnosing various abdominal conditions (option 4).

Regarding percussion of the abdomen, the true statement is that dullness is noted over solid organs and tympani is noted over air in the bowels.

For assessing liver size, the use of Castell's point is relevant. During an abdominal examination, the liver will provide a dull sound because it is a solid organ, whereas air in the bowels will give a tympanic sound.

Healthcare providers use an approach of dividing the abdominal cavity into quadrants or regions as a standard method to promote precise communication about symptoms such as abdominal pain or the presence of a suspicious mass.

Recognizing the sounds of tympani or dullness can assist in identifying conditions such as ascites or masses by contrasting normal findings with abnormal ones.