Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest film ___ at 04 :21 is submitted .
    OUTPUT:
    
Interval extubation . The left subclavian central line and nasogastric tube are likely unchanged in position . Overall cardiac and mediastinal contours are stable . Lung volumes are slightly lower and there are streaky opacities at both bases likely reflecting atelectasis . No large effusions . No pneumothorax . No evidence of pulmonary edema . Hardware is incompletely visualized overlying the mid and lower cervical spine .