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AST Member No. ■ My address has changed. The address below is the new address. Name Address City State Zip Telephone ■ Check enclosed  ■ Check Number a b c d a b c d 1 ■ ■ ■ ■ 11 ■ ■ ■ ■ 2 ■ ■ 11 ■ ■ ■ ■ 3 ■ ■ ■ ■ 13 ■ ■ ■ ■ 4 ■ ■ ■ ■ 14 ■ ■ ■ ■ 5 ■ ■ ■ ■ 15 ■ ■ ■ ■ 6 ■ ■ ■ ■ 16 ■ ■ ■ ■ 7 ■ ■ ■ ■ 17 ■ ■ ■ ■ 8 ■ ■ 18 ■ ■ ■ ■ 9 ■ ■ ■ ■ 19 ■ ■ ■ ■ 10 ■ ■ ■ ■ 20 ■ ■ ■ ■ #447   MARCH 2021   1 CE CREDIT   $6 5. What type of incision will be used to start the procedure? a. C-shaped b. Lateral c. Perpendicular d. U-shaped 6. Malignant gliomas are characterized by a disseminated ____ pattern within normal brain tissue. a. Lateral b. In-growth c. Infiltrative d. Expansive 7. Once 5-ALA is given it is rapidly absorbed into the bloodstreamwithin: a. 10 minutes b. 45 minutes c. 1 hour d. 3 hours 8. True or false: Glia are more numerous than neurons. a. True b. False 1. 5-ALA is delivered orally in a prepared solution to the patient approximately ___ prior to surgery. a. 30 minutes b. 3 hours c. 6 hours d. 1 day 2. True or false: Tumor dissection often utilizes blue light microscopy, unlike the white light microscopy used with 5-ALA. a. True b. False 3. ____________is what aids in identifying fluorescence in regions of low-density cell infiltration too weak to be visualized directly with the microscope alone. a. Photo bleaching b. Light microscopy c. Spectrometry d. None of the above 4. A glioma is a tumor that arises from: a. Glial cells b. Glioma neurons c. Bone cells d. Endothelial cells 9. For this procedure, which patient posi- tioning is commonly used because it allows access to the frontal, parietal and temporal lobes? a. Lateral b. Prone c. Fowler’s d. Supine 10. Since the cancer cells cannot metabolize 5-ALA, the fluorescence accumulates within the tumor cells causing them to glow ___ under blue light. a. Yellow b. Red c. White d. Orange 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. If you want to mail in your CEs, but still want to pay by credit card, give us at call at 800-637-7433. 5-ALA Fluorescence-Guided Resection of Malignant Gliomas 5-ALAFLUORESCENCE-GUIDEDRESECTIONOFMALIGNANTGLIOMAS # 447 MARCH2021 1 CECREDIT $6 MARCH 2021 | The Surgical Technologist | 117