RDTP212 Abdominal Review Questions and Correct Answers

RDTP212 Abdominal Review Questions and Correct Answers 1. List nine of the most common acute abdominal radiation effects - Correct Answer: Nausea, vomiting, diarrhea, fatigue, dehydration, upset stomach, loss of appetite, erythema of the area being treated, changes in blood cell counts(leukopenia or thrombocytopenia What are the critical structures for the abdomen? What is the TD 5/5 for each organ? - Correct Answer: Stomach-55 Gy, Liver-30 Gy, Kidney-23 Gy, Small Bowel-45 Gy, Large Bowel-45 Gy In what section of the pancreas are cancerous lesions most common? - Correct Answer: Head and neck of the pancreas 4. In what section of the stomach are cancerous lesions most common? - Correct Answer: Pyloric region 5. Immodium and lomotil are what? - Correct Answer: Anti-diarrheal medications used to treat diarrhea For gastric cancers, how should patients be set up? - Correct Answer: Supine. Arms above head. When scanning a patient with abdominal cancer, the scan should start and end where approximately? - Correct Answer: It starts at the diaphragm superiorly and extends down to the pelvic brim inferiorly. What are the three most common cancers of the abdomen? (Note: in which organs/structures do tumors originate?) - Correct Answer: Colorectal, stomach and liver. What is the most common (90%+) form of stomach cancer? - Correct Answer: Adenocarcinoma If stomach cancer is being treated adjunctively with radiation, what is the normal total dose? - Correct Answer: 40 - 45 Gy What are the three dose limiting organs for stomach irradiation? - Correct Answer: Liver, small intestine, kidneys What are the three major divisions of the small bowel? - Correct Answer: Duodenum, Jejunum, Ileum What are the four major sections of the stomach? - Correct Answer: Cardiac, Fundus, Corpus, Pylorus What is the treatment of choice for cancers of the abdomen? - Correct Answer: Surgery, Radiation (3D conformal or IMRT) What is the normal whole abdomen radiation dose? In what fractions? - Correct Answer: 23 Gy in 1.8-2.0 Gy fractions Both of these abdominal cancers are in the top five causes of cancer deaths for both men and women - Correct Answer: Pancreatic and colorectal