Test Your Chest X-ray Positioning Skills for Lymph Nodes and Tumors Detection
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Questions and Answers

What is the recommended patient positioning for a CT scan of the mediastinum and axillary lymph nodes?

  • Sitting position
  • Lateral position
  • Supine position with arms elevated over the head (correct)
  • Prone position

    • What is the recommended collimation for a low-dose high resolution HR lung protocol?

  • 3 mm
  • 120 kV
  • 10–20 mAs
  • 4¥2.5 mm (correct)

    • What is the purpose of a swallow of barium suspension before a CT scan of the mediastinum and axillary lymph nodes?

  • To optimize demarcation of the esophagus (correct)
  • To reduce the dose of the CT scan
  • To reduce artifacts from venous inflow
  • To reduce artifacts from breathing

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