NCCN Guidelines for Patients® | Chronic Lymphocytic Leukemia

20 NCCN Guidelines for Patients ® : Chronic Lymphocytic Leukemia, 2018 2 Treatment planning Imaging tests Tumor lysis syndrome can occur among people with CLL who are undergoing strong cancer treatments. The cancer treatment kills many cancer cells and results in too much waste. See page 49 for more information on tumor lysis syndrome. Your doctors may want to know your uric acid levels before starting treatment. You may be given certain medications that can help prevent tumor lysis syndrome. Also, drinking plenty of water throughout chemotherapy can help. Ask your treatment team for more information. Imaging tests Imaging tests make pictures (images) of the inside of your body. They can show where cancer is. Depending on the test, you may need to stop taking some medicines and stop eating and drinking for a few hours before the scan. If you are nervous, you may be given a drug, called a sedative, to help you relax. Imaging machines are large. You will likely be lying down during testing. At least part of your body will be in the machine. See Figure 7 for a type of imaging machine called a CT ( c omputed t omography) scan. After the test, you will likely be able to resume your activities right away. If you took a sedative, you will have a waiting period. You may not learn of the results for a few days since a radiologist needs to see the pictures. A radiologist is a doctor who’s an expert in reading the images. After the test, you will likely be able to resume your activities right away. If you took a sedative, you will have a waiting period. You may not learn of the results for a few days since a radiologist needs to see the pictures. A radiologist is a doctor who’s an expert in reading the images. CT scan A CT scan may be needed before starting and during treatment. CT takes many pictures of a body part from different angles using x-rays. A computer combines the x-rays to make detailed pictures. A contrast dye is used for CT. It makes the pictures clearer. The dye will be injected into a vein in your hand or arm. You will also be given a liquid contrast to drink. Figure 7 CT machine Pictures of the insides of your body can be made with an imaging test. During the scan, you will lie on a table that will move into the tunnel of the imaging machine. The pictures will be viewed by a doctor who will look for signs of cancer. Copyright © 2017 National Comprehensive Cancer Network ® (NCCN ® ). www.nccn.org

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