Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi-upright view of the chest provided . The NG tube courses inferiorly into the left upper abdomen . The endotracheal tube is noted in the trachea , residing approximately 4 .6 cm above the carina . A right IJ central venous catheter is seen in the region of the mid SVC . Left basilar opacities compatible with effusion and atelectasis . There may be mild right basilar atelectasis as well . The heart size is grossly stable . The patient 's chin obscures the lung apices partially . The mediastinal contour is stable . No acute bony abnormalities .
    OUTPUT:
    
Appropriately positioned NG tube . Persistent left basal opacity compatible with effusion and atelectasis .