Final answer:
The correct CR angle for the PA axial projection of the clavicle is 15 to 30 degrees cephalic, with the central ray angled towards the head.
Step-by-step explanation:
The correct CR angle for the PA axial projection of the clavicle is 15 to 30 degrees cephalic, with the central ray angled towards the head.
The proper CR angle and direction on the PA axial projection of the clavicle is a. 35 to 45 degrees cephalic.
The proper Central Ray (CR) angle and direction on the PA axial projection of the clavicle is 15 to 30 degrees cephalic. Meaning, the central ray should be angled in the direction of the head between 15 and 30 degrees from the vertical. This technique aims to project the clavicle above the ribs and scapula for optimal visualization.