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a b c d a b c d 1 ■ ■ ■ ■ 11 ■ ■ ■ ■ 2 ■ ■ ■ ■ 12 ■ ■ ■ ■ 3 ■ ■ 13 ■ ■ ■ ■ 4 ■ ■ ■ ■ 14 ■ ■ ■ ■ 5 ■ ■ ■ ■ 15 ■ ■ ■ ■ 6 ■ ■ ■ ■ 16 ■ ■ ■ ■ 7 ■ ■ 17 ■ ■ ■ ■ 8 ■ ■ ■ ■ 18 ■ ■ ■ ■ 9 ■ ■ ■ ■ 19 ■ ■ ■ ■ 10 ■ ■ ■ ■ 20 ■ ■ ■ ■ #417   SEPTEMBER 2018 2 CE CREDITS $12 5. When choroidal melanoma metastasizes, the liver is involved: a. 60% of the time b. 70% of the time c. 80% of the time d. 90% of the time 6. Currently, the most commonly used iso- tope in the USA to create plaques used to treat choroidal melanoma is the radio- isotope ______. a. Iodine-125 b. Iodine-126 c. Iodine-127 d. Iodine-128 7. The longer a radioisotope is left to decay, the less radiation it emits. a. True b. False 1. Where is the choroid located in the eye? a. Directly behind the lens b. Directly behind the retina c. Directly behind the optic nerve d. Directly behind the vitreous 2. Genes that help cells grow, divide and stay alive are called what? a. Tumor suppressor genes b. Polymeric genes c. Modifying genes d. Oncogenes 3. Choroidal melanoma is caused by a metastasized skin melanoma. a. True b. False 4. Choroidal Melanoma appears: a. Pigmented b. Variably pigmented c. Non-pigmented d. All of the above 8. The plaque consists of multiple radioac- tive seeds all encapsulated in a silicone carrier, and covered by a large shield on one side. What is the shield made of? a. Lead b. Titanium c. Gold d. Silver 9. How long does the plaque remain in place? a. 2-5 days b. 2-7 days c. 3-5 days d. 3-7 days 10. Most tumors begin to shrink _______ months after brachytherapy surgery? a. 1-2 months b. 2-4 months c. 3-6 months d. 6-8 months PLAQUE BRACHYTHERAPY TO TREAT CHOROIDAL MELANOMA # 417   SEPTEMBER 2018 2 CE CREDITS $12 NBSTSA Certification No. AST Member No. ■ My address has changed. The address below is the new address. Name Address City State Zip Telephone ■ Check enclosed  ■ Check Number ■ Visa ■ MasterCard  ■ American Express Credit Card Number Expiration Date Make It Easy - Take CE Exams Online Y ou must have a credit card to pur- chase test online. We accept Visa, MasterCard and American Express. Your credit card will only be charged once you pass the test and then your credits will be automati- cally recorded to your account. Log on to your account on the AST homepage to take advantage of this benefit. PlaqueBrachytherapy to Treat ChoroidalMelanoma SEPTEMBER 2018 | The Surgical Technologist | 407