Which statement is true about chest percussion?

Chest percussion is a technique used in respiratory therapy to help mobilize secretions from the lungs and improve ventilation. The correct statement regarding chest percussion is that it involves an alternating hand motion striking the chest wall. This rhythmic clapping technique creates waves of pressure that can help dislodge mucus from the airway, making it easier for the patient to expectorate or cough it up.

This method is beneficial for patients with various respiratory conditions, such as cystic fibrosis, pneumonia, or bronchiectasis, where mucus buildup can hinder breathing. The technique can be performed with the patient in different positions to optimize effectiveness and comfort.

While proper training is important in executing chest percussion to avoid causing discomfort or injury to the patient, it does not require extensive training. Additionally, while it can be effective through clothing, practitioners will often assess the best approach for each patient, and it is not necessary to perform it without clothing. Moreover, chest percussion is not contraindicated for all patients; it can be safely used in many cases with careful consideration of each patient's specific condition.