A Digital Image Taken of a Lateral Thoracic Spine Projection

Multiple Choice

A digital image taken of a lateral thoracic spine projection demonstrates poor visibility of the spine.The image was taken on a full 14- × 17-inch (35- × 43-cm) IR.The following factors were used during the exposure: 80 kV, 80 mAs, 40-inch (102-cm) SID, and collimation to the size of the IR.Which one of the following modifications will result in a more diagnostic image?

A) Decrease kV.
B) Decrease mAs.
C) Collimate to spine.
D) Increase SID.