Which of the following is true of a chest radiograph?

a. Lateral films are shot through one side of an upright patient.
b. AP films are typically taken in the x-ray department.
c. PA films artificially increase the size of the heart shadow.
d. Lateral decubitus films are shot with the patient lying supine.

A
A lateral radiograph is filmed with the patient standing upright with either the left (preferred) or right side of the chest against the film plate. AP films are taken by a portable machine at the patient's bedside. PA films show the heart at its correct size. A lateral decubitus film is taken with the patient lying on either side.