Percussion and Vibration Are Prescribed on a Patient with Retained

Percussion and vibration are prescribed on a patient with retained pulmonary secretions.Which action by the student nurse should the nursing instructor question?

A) Performs percussion for 3 to 5 minutes in each position as tolerated
B) Uses the wrist and elbow to create movement when performing percussion
C) While the patient inhales,gently pushes down and vibrates the chest wall with the flat part of the hand
D) Repeats the vibration three times and then instructs the patient to take a deep breath and cough while exhaling