Which of the following is consistent with good percussion technique?

The correct response emphasizes the importance of striking the pleximeter accurately during percussion, which is essential for obtaining clear and reliable sounds. Striking the pleximeter over the distal interphalangeal joint allows for an optimal impact area to create vibration, leading to better acoustic quality. This area is well-suited because it provides a firm base that can transmit the sound waves effectively while minimizing discomfort for the patient.

In practicing percussion, proper positioning and technique are critical for achieving accurate and reproducible results. The distinction of striking at key anatomical landmarks can enhance the clinician’s ability to discern different percussion notes, which aids in diagnosing various conditions based on the tone produced.

The other answer choices misrepresent effective percussion technique: allowing all fingers to touch the chest could dampen the sound; a stiff wrist and hand can reduce control and precision; and leaving the plexor finger in contact with the pleximeter can obscure subsequent sounds and hinder the evaluation process. Each of these incorrect methods obstructs optimal sound transmission and the percussion technique's effectiveness.