FREE RADIOLOGY AND STUDY GAMES ABOUT BASIC

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FREE RADIOLOGY AND STUDY GAMES ABOUT BASIC

SKULL POSITION EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -23 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: What positioning error has been committed if the EAMs are not superimposed with one more superior than the other on the lateral skull?

Answer:

Tilt Question 2: Critical Thinking: An xray of the SMV position of the skull reveals the mandibular condyles are with the petrous bone. What error led to this?

Answer:

Insufficient Extension of the skull or the CR was not perpendicular to the IOML

Question 3: Where is the CR centered for a lateral skull?

Answer:

2" above the EAM

Question 4: Which group of sinuses is best deomstrated with a waters position?

Answer:

Maxillary sinuses

Question 5: For a Modified waters the petrous ridges should be projected below the:

Answer:

orbital rims

Question 6: What line is parallel to the IR for the SMV?

Answer:

IOML Question 7: Critical Thinking: A 15* PA Axial (Caldwell) of the skull reveals that the petrous ridges are projected at the inferior orbital margin. What is the positioning error?

Answer:

Excessive Extension or excessive caudad angle project the petrous ridges lower than expected. (they should be in the lower 1/3 of orbits) Question 8: What is the average kV range for analog skull radiography? kV range for digital imaging?

Answer:

Analog: 65-75 kV

Digital: 75-90 kV

Question 9: When using a 30* caudad towne method of the skull, which positioning line should be perpendicular to the IR?

Answer:

OML Question 10: Which cranial bone is best demonstrated with an AP Axial (Towne method) projection of the skull?

Answer:

occipital Question 11: which sinuses are projected through the oral cavity with the PA axial transoral projection?

Answer:

Sphenoid

Question 12: A properly positioned Towne method should place the dorsum sellae into the

middle aspect of the:

Answer:

Foramen magnum Question 13: For a PA waters the petrous ridges should be projected directly below the:

Answer:

Maxillary sinuses

Question 14: What position best demonstrates the sella turcia in profile?

Answer:

Lateral

Question 15: List the 5 most common errors made during skull radiography?

Answer:

Rotation, Tilt, Flexsion, Extension, Incorrect Angle

Question 16: which sinuses are best demonstrated with a PA Caldwell projection?

Answer:

Frontal and anterior ethmoid sinuses

Question 17: what position best demonstrates the clivus in profile?

Answer:

Lateral Question 18: Which specific positioning error is present if the petrous ridges are projected higher in the orbits than expected for a 15* PA Axial/Caldwell?

Answer:

Excessive flexion or insufficient CR angle Question 19: Which projection of the skull produces an image of the frontal bone with little to no distortion?

Answer:

PA Skull

Question 20: where does the CR exit for a Haas method of the skull?

Answer:

1.5" (4 cm) superior to the nasion

Question 21: What CR angle should be used for the PA Axial (Haas method)

Answer:

25* cephalad Question 22: Where will the petrous ridges be projected with a 15* PA Axial (Caldwell) of the skull?

Answer:

the lower 1/3 of the orbits Question 23: A lack of symmetry of the petrous ridges indicates which positioning error with an AP axial projection?

Answer:

Rotation