How should the central ray be directed for a mediolateral knee on an asthenic patient?
perpendicular
3-5 degrees caudal
5-7 degrees caudal
5-7 degrees cephalic
5-7 degrees cephalic
Rationale: All mediolateral knee projections require the central ray to be angled 5-7 degrees cephalic. The cephalic tube angle will help to superimpose the medial femoral condyle onto the lateral femoral condyle.
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