Chapter 19: Special Radiographic Procedures Lampignano: Bontrager’s Textbook of Radiographic Positioning and Related Anatomy, 9th Edition

Chapter 19: Special Radiographic Procedures Lampignano: Bontrager’s Textbook of Radiographic Positioning and Related Anatomy, 9th Edition MULTIPLE CHOICE 1. Which of the following is generally true for knee arthrography? a. A common nontrauma clinical indication is a Baker’s cyst. b. A minimum of 20 mL of positive contrast media is introduced into joint. c. During fluoroscopy, views are taken of each meniscus with the knee rotated 30° between exposures. d. The amount of aspirated joint (synovial) fluid should equal the amount of injected contrast media. ANS: A REF: 713 2. What imaging modality is most frequently used to study the soft tissue structures of the temporomandibular joint? a. Computed tomography (CT) b. Magnetic resonance imaging (MRI) c. Conventional radiography d. Ultrasound ANS: B REF: 712 3. Which of the following instruments is not required during a knee arthrogram? a. Sterile gauze b. 10-mL syringe c. 20-gauge needle d. Arthroscope ANS: D REF: 713 4. During an arthrogram, why is the knee flexed following injection of contrast media before imaging? a. To reduce the viscosity of the contrast media b. To force the contrast media outside of the joint if there is a tear c. To coat the soft tissue structures with contrast media d. None of the above; the knee should not be flexed during an arthrogram after injection of contrast media. ANS: C REF: 713 5. A common fluoroscopy routine for knee arthrography is: a. nine views of each meniscus rotated 20° between exposures. b. nine views total of each knee rotated 20° between exposures. c. six views each of lateral and medial menisci rotated 20° between exposures. d. horizontal beam projections, six exposures per knee. ANS: A REF: 714 6. Which of the following is not an indication for knee arthrography? a. Injury or tears to rotator cuff b. Evaluate for Baker’s cyst c. Injury or tears to collateral or cruciate ligaments d. Injury or tears to menisci ANS: A REF: 713 7. What size needle is used to introduce the contrast media during a shoulder arthrogram? a. 2 inches, 16 gauge b. 1 1/2 inches, 18 gauge c. 2 inches, 25 gauge d. 2 3/4- to 3 1/2-inch spinal needle ANS: D REF: 715