An AP oblique knee with medial rotation on an asthenic patient requires which type of central ray?

perpendicular
5-7 degrees cephalic
3-5 degrees cephalic
3-5 degrees caudal

perpendicular

Rationale: The AP oblique knee with either medial or lateral rotation uses a perpendicular beam. The primary focus on the AP oblique is not the femorotibial joint, but rather the femoral condyles and/or proximal tibiofibular joint.

Health Professions

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