American Registry of Radiologic Technologists (ARRT) Practice Exam

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Prepare for the American Registry of Radiologic Technologists Test with engaging quizzes and detailed explanations. Boost your test readiness with multiple-choice questions designed to enhance your knowledge and confidence.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which position demonstrates the patient's left kidney parallel to the IR and the right kidney perpendicular to the IR?

30 degrees RPO
20 degrees LPO
45 degrees RAO
30 degrees LAO

The correct answer is: 30 degrees RPO

The correct option demonstrates the patient's left kidney parallel to the image receptor (IR) while positioning the right kidney perpendicular to the IR. In a 30 degrees right posterior oblique (RPO) position, the right side of the body is rotated backward, allowing the right kidney to be positioned perpendicular to the IR. This angle also has the effect of raising the left kidney, making it more parallel to the IR, which is necessary for optimal visualization and assessment. This positioning is important in imaging because it enhances the clarity of renal structures in the x-ray field. When the left kidney is parallel to the IR, it reduces distortion and superimposition from surrounding anatomical structures, providing a better diagnostic image. This positioning technique is commonly used when the objective is to compare both kidneys or to focus specifically on the anatomy of one kidney in relation to the other.