The nurse is performing a lung assessment on a client with suspected pneumonia.Which of the following assessments should the nurse report to the physician immediately?

A) Presence of mydriasis
B) Breath sounds equal bilaterally
C) Asymmetric chest expansion
D) Bilateral vocal fremitus

Asymmetric chest expansion can indicate a collapsed lung or pleural effusion, which are urgent conditions. Mydriasis may indicate an adverse reaction to medication, but is not directly related to the lung assessment. Breath sounds and vocal fremitus can provide important information about lung function, but they do not indicate an immediate need for medical intervention.