Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , and a suboptimal inspiratory effort . Cholecystectomy clips are noted in the right upper quadrant . The cardiomediastinal silhouettes are stable and within normal limits . The lungs are clear . There is no evidence of pulmonary vascular congestion . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
No acute cardiopulmonary process .