RTE 2563 FINAL EXAM - SPECIAL PROJECTIONS
QUESTIONS WITH VERIFIED ANSWERS
C - Answers - Where should the central ray enter for a cross-table lateral, trauma skull
projection?
A. Perpendiculor to the EAM
B. 3/4" anterior and 3/4"superior to the
EAM
C. 2" superior to the EAM
D. The lateral margin of the orbit
C - Answers - For a submentovertical (full basal) projection, what line is parallel to the
plane of the image receptor?
A. Glabellomeatal line
B. Orbitomeatal line
C. Infraorbitomeatal line
D. Acanthiomeatal line
B - Answers - For the lateral (Law) projection fo the TMJ's, how much is the central ray
angled and in which direction?
A. 15 degrees, cephalad
B. 15 degrees, caudad
C. 30 degrees, cephalad
D. 30 degrees, caudad
B - Answers - What two parts of the patient's anatomy will be touching the table during a
PA (Caldwell) projection?
A. Nose and chin
B. Nose and forehead
C. Upper and lower lips
D. Cheek and chin
B - Answers - For an axiolateral oblique projection of the mandible, if the patient is
lateral, how much is the tube angled?
A. 15 degrees cephalad
B. 25 degrees cephalad
C. 35 degrees cephalad
D. 45 degrees cephalad
B - Answers - For an AP 0 degree (Caldwell) projection of a trauma skull, where will the
central ray enter?
A. acanthion
B. Glabella
QUESTIONS WITH VERIFIED ANSWERS
C - Answers - Where should the central ray enter for a cross-table lateral, trauma skull
projection?
A. Perpendiculor to the EAM
B. 3/4" anterior and 3/4"superior to the
EAM
C. 2" superior to the EAM
D. The lateral margin of the orbit
C - Answers - For a submentovertical (full basal) projection, what line is parallel to the
plane of the image receptor?
A. Glabellomeatal line
B. Orbitomeatal line
C. Infraorbitomeatal line
D. Acanthiomeatal line
B - Answers - For the lateral (Law) projection fo the TMJ's, how much is the central ray
angled and in which direction?
A. 15 degrees, cephalad
B. 15 degrees, caudad
C. 30 degrees, cephalad
D. 30 degrees, caudad
B - Answers - What two parts of the patient's anatomy will be touching the table during a
PA (Caldwell) projection?
A. Nose and chin
B. Nose and forehead
C. Upper and lower lips
D. Cheek and chin
B - Answers - For an axiolateral oblique projection of the mandible, if the patient is
lateral, how much is the tube angled?
A. 15 degrees cephalad
B. 25 degrees cephalad
C. 35 degrees cephalad
D. 45 degrees cephalad
B - Answers - For an AP 0 degree (Caldwell) projection of a trauma skull, where will the
central ray enter?
A. acanthion
B. Glabella