Author Question: When using the PBL, the collimated light field must remain within _____ of the light field. 1 4 5 ... (Read 70 times)

mckennatimberlake · **on:** Jul 17, 2018

When using the PBL, the collimated light field must remain within _____ of the light field.

1
4
5
2

Question 2

Where is the central ray directed for the AP axial weight-bearing feet?

to the first cuneiform
to the base of the 3rd metatarsal
to the image receptor midway between both feet
to the head of the 3rd metatarsal

cpetit11 · **Reply #1 on:** Jul 17, 2018

Answer to Question 1

2

Rationale: The collimated light field must remain within 2 of the SID.

Answer to Question 2

to the image receptor midway between both feet

Rationale: Imaging the feet bearing weight for the AP axials, will acquire comparison views taken on one image receptor. The central ray is angled 15 degrees cephalic and centered midway between both feet.