Symmetry during palpation is important because:

• A. Asymmetry indicates dysfunction; symmetry helps establish a baseline and identify abnormalities
• B. Symmetry indicates lung function
• C. Symmetry has no clinical relevance
• D. Symmetry determines blood pressure

Answer: (A)

Palpation relies on comparing structures on both sides of the body to establish what is normal for that patient. When both sides feel and move similarly, you have a reference point for normal anatomy and function. If you detect asymmetry—differences in contour, tenderness, texture, warmth, or swelling on one side—it suggests possible dysfunction or pathology that warrants further assessment. This is why symmetry is emphasized: it helps you spot abnormalities early and guide more targeted evaluation.

The idea that symmetry directly indicates lung function isn’t accurate, since symmetry of surface feel isn’t a direct measure of how well the lungs are working. And symmetry is clinically relevant; it doesn’t determine blood pressure.