What CR Angulation Is Required for an AP Projection of the Knee

question 61

Multiple Choice

What CR angulation is required for an AP projection of the knee on a patient with an ASIS-to-tabletop measurement of 18 cm?

• A) 3° to 5° caudad
• B) CR is perpendicular to the IR.
• C) 3° to 5° cephalad
• D) 10° to 15° cephalad

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