FREE RADIOLOGY AND STUDY GAMES ABOUT SKULL

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FREE RADIOLOGY AND STUDY GAMES ABOUT SKULL

POSIT COMP EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -19 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Eval criteria lateral skull

Answer:

cranium without rotation or tilt, sella turcica in profile, superimposed orbital roofs, greater wings of sphenoid, EAM and TMJ

Question 2: PA axial skull alternate name

Answer:

Caldwell

Question 3: AP axial skull alternate name

Answer:

Towne

Question 4: CR entry for Caldwell skull for superior orbital fissures

Answer:

CR 20-25 degrees caudad

Question 5: A Towne for skull is done to view:

Answer:

the occipital bone

Question 6: SMV for skull CR entry

Answer:

perpendicular to IOML, midway between the mandibular angles ¾" anterior to the level of the EAM Question 7: What piece of anatomy is used to determine rotation on a Towne skull?

Answer:

foramen magnum

Question 8: Towne skull positioning

Answer:

TOF at cranial vertex, OML perpendicular to IR or IOML perpendicular (changes tube angle) Question 9: The Caldwell for skull is done to view:

Answer:

the frontal bone

Question 10: CR entry for Caldwell skull for frontal bone

Answer:

CR perpendicular

Question 11: CR entry for Caldwell skull

Answer:

15 degrees caudad exiting the nasion

Question 12: CR entry lateral skull

Answer:

2" superior to the EAM

Question 13: CR entry Towne for skull

Answer:

CR enters 2 ½" above glabella, angle 30 degrees caudad when OML perp. Angle 37 degrees when IOML perp.

Question 14: Eval criteria Towne for skull

Answer:

no rotation or tilt, symmetric petrous ridges, dorsum sellae and posterior clinoid process seen through foramen magnum.

Question 15: Lateral skull positioning

Answer:

MSP parallel, IOML parallel to long axis of IR, IPL perpendicular to IR.

Question 16: SMV for skull positioning

Answer:

vertex touches bucky, MSP perpendicular, IOML parallel to IR

Question 17: CR entry for Caldwell skull for rotundrum foramina

Answer:

CR 25-30 degrees caudad

Question 18: Eval for Caldwell skull

Answer:

symmetric petrous ridges, no tilt or rotation, petrous ridges lie in the lower 1/3 of the orbits (w/ angle), petrous ridges fill the orbits (no angle)

Question 19: Caldwell for skull positioning

Answer:

MSP centered, pt forehead and nose touch bucky, OML perpendicular