Headwork- Procedures

Question 1

Describe the anatomy that should be touching the board in a PA or Caldwell (PA Axial) view of the cranium.

Answer 1

Part positionion: Forehead and nose are resting on the bucky.

Question 2

For a PA or PA Axial view of the skull, the MSP should be __________ to the midline of the grid device.

Answer 2

Perpendicular.

Question 3

For a PA / PA Axial view of the cranium the _______ must be perpendicular to the image receptor.
A) IOML
B) IPL
C) OML

Answer 3

C) OML must be perpendicular to the image receptor for a PA or PA axial view of the cranium.

Question 4

Describe the tube angulation in terms of degree/direction, and exit point for the Caldwell (PA Axial) view of the cranium.

Answer 4

• Tube is angled 15 degrees Caudad
• CR exits the the nasion

Question 5

In a PA view of the cranium, what landmark does the CR exit the patient?

Answer 5

-CR exits the the nasion in both the PA and the Caldwell (PA Axial) view.

Question 6

For a lateral view of the cranium, the image receptor is centered to the point of _____ inches superior the EAM.

Answer 6

Lateral cranium - 2 inches superior to the EAM.

Question 7

For a lateral view of the cranium, the ________ should be parallel to the transverse axis of the image receptor.
A) OML
B) IOML
C) EAM
D) GML

Answer 7

B) IOML should be parallel to the transverse axis of the IR.

Question 8

For a lateral view of the cranium, the _____ should be perpendicular to the IR.
A) OML
B) IOML
C) IPL
D) EAM

Answer 8

C) IPL should be perpendicular to the image receptor for a lateral cranium.

Question 9

For a lateral cranium X-Ray, the central ray enters two inches ________ to the ______.
Blank one - Inferior / Superior
Blank two - EAM / IML

Answer 9

Superior to the EAM

Question 10

When the Sella Turcica is of primary interest, the image receptor and the central ray are directed _____ inch superior and ______ anterior to the EAM.

Answer 10

3/4 inch and 3/4 inch

Question 11

Describe the tube angulation in terms of degrees and direction when the AP Axial (Towne) X Ray is done with the OML perpendicular to the image receptor.

Answer 11

If the OML is perpendicular to the IR, the tube is angled 30 degrees caudal.

Question 12

Describe the tube angulation in terms of degrees and direction when the AP Axial (Towne) X Ray is done with the IOML perpendicular to the image receptor.

Answer 12

If the IOML is perpendicular to the IR, then the tube is angled 37 degrees to the IOML.

Question 13

What is the