A PA projection of the patella is performed on an patient wi…

A PA projection of the patella is performed on an patient with the patient prone on the table.  Which of the following citeria apply to this projection and position of patient? The CR is placed so it exits the patella The CR is placed at the patellar apex Heel is rotated laterally 5-10 degrees The CR should be angled 5 to 7 degrees caudad