The nurse continues the respiratory assessment of a client's chest excursion by placing both hands as seen in the picture. Which instruction should the nurse give the client?

A. Hold your breath: Holding the breath would prevent the nurse from observing chest movement during inhalation and exhalation, making it unsuitable for assessing chest excursion. B. Chest excursion is assessed to evaluate the symmetry and depth of lung expansion. By instructing the client to take a deep breath, the nurse can observe the movement of both hands as the lungs expand. Symmetrical and adequate movement indicates normal lung function, while asymmetry may suggest conditions such as pneumothorax, pleural effusion, or atelectasis. C. Cough vigorously: While coughing may be helpful in evaluating airway clearance or adventitious sounds, it is unrelated to chest excursion. D. Lean forward: Leaning forward is not necessary for chest excursion assessment; this position is typically used for auscultating posterior lung sounds or relieving dyspnea in conditions like COPD.