When the Central Ray Is Aligned with a Patient's OML

question 29

Multiple Choice

When the central ray is aligned with a patient's OML, the tube angle reads 25 degrees caudad. What angulation would you use for this patient for a trauma AP axial (Towne method) cranial projection?

• A) Perpendicular
• B) 55 degrees caudad
• C) 45 degrees caudad
• D) 10 degrees cephalad

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