Lateral Projection – Lateromedial (Upright)Image receptor: 18 x 43 cm or 35 x 43 cm Show
Patient Position:Place the patient in a seated upright or standing position facing the xray tube. The body position, whether oblique or facing toward or away from the image receptor, is not critical as long as a true projection of the lateral arm is obtained. Part Position:
Central ray:Perpendicular to the midportion of the humerus and the center of the IR. Structure shown:The lateral projection demonstrate the entire length of the humerus. A lateral image is confirmed by superimposed epicondyles. Evaluation Criteria:The following should be clearly demonstrated:
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What anatomic structure is shown in profile on an lateral projection of the humerus?The large, rounded, elevated process prominently located on the lateral surface of the proximal humerus is the: a. Greater tubercle.
What should be seen in profile on a properly positioned lateral humerus?Humeral head and greater tubercle are both seen in profile.
Which rotation of the humerus will result in a lateral position of the humerus?Chapter 6. How is the upper extremity positioned for the lateral projection of the humerus quizlet?the arm is internally rotated, elbow somewhat flexed, with the back of the hand against the thigh and the epicondyles superimposed and perpendicular to the IR. The lateral projections of the humerus, elbow, and forearm all require that the epicondyles be perpendicular to the plane of the cassette.
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