What is the purpose of palpating the tongue during an oral exam?

The purpose of palpating the tongue during an oral examination is primarily to detect hard nodes and other abnormalities that may indicate underlying health issues. Palpation allows the clinician to feel for any unusual masses or hardened areas on the surface of the tongue, which can be signs of conditions such as tumors, infections, or other pathologies.

While measuring size and shape, assessing movement, and checking for color changes are all important aspects of a comprehensive oral exam, the tactile examination provided by palpation is specifically crucial for identifying hard nodes that may not be visible to the naked eye. This technique can reveal significant clues about the patient's oral and overall health, thus making it a vital component of a thorough examination.