Anteroposterior (AP) chest radiographs can be made in the intensive care unit, theoperating suite, or the patient’s room using mobile equipment. They are often knownas a portable film when performed with a mobile unit. They are generally of lesserquality than a posteroanterior (PA) radiograph or recumbent films made in the radiologydepartment. Hence, it is preferable to obtain a film in the radiology department unlessthe patient cannot be moved without hazard.