Immune system A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 14 questions. More Questions You will get deferent questions every time you take the quiz. Correct AnswersThere could be more than one correct answer, select all that apply.Skip QuestionsYou are allowed to scroll backward and forward before submitting your answers.10 MinutesThe quiz has a time limit. Time's up You can still submit your answers after the allowed period of time has ended . When ready, click Next to start the quiz. Name (Required) Email (Optional) Twitter (Optional) 1. All of the following scintigraphic methods are often used in the diagnosis of fever of unknown origin (FUO) EXCEPT Labeled erythrocytes scintigraphy Ga-67 citrate scintigraphy Labeled leukocytes scintigraphy Fluorodeoxyglucose-positron emission tomography (FDG-PET) None 2. Radiopharmaceuticals used in imaging of infection and inflammation accumulate in the region of interest because of the locally changed physiologic conditions. An infectious/inflammatory process is characterized by all of the following EXCEPT: Influx of red blood cells. Influx of white blood cells. Increased blood flow. Increased vascular permeability. None 3. Images obtained shortly after injection of leukocytes labeled with In-111 or Tc-99m are characterized by intense pulmonary activity that clears and approaches background level by: 0.5 hour after injection. 4 hours after injection. 1 hour after injection. 2 hours after injection. None 4. Human antimurine antibody (HAMA) is being produced when: A murine immunoglobulin is injected into a human. A humane immunoglobulin is injected into a mouse. A human immunoglobulin is injected into a human. A murine immunoglobulin is injected into a mouse. None 5. Tc-99m and In-111-labeled leukocyte imaging (WBC) are established procedures for diagnosing inflammation and infection. All of the following wounds appear as areas of intense activity on WBC images EXCEPT: Tracheostomies wounds. Skin grafts wounds. Surgical incision wounds. Ileostomies wounds. None 6. Tc-99m-labeled leukocytes and Tc-99m sulfur colloid accumulate in the reticuloendothelial cells of the bone marrow. The distribution of marrow activity is similar for both radiopharmaceuticals with the exception of an acute or chronic bone infection. Osteomyelitis: Stimulates uptake of sulfur colloid but suppresses uptake of leukocytes. Stimulates uptake of leukocytes but does not affect uptake of sulfur colloid. Stimulates uptake of leukocytes but suppresses uptake of sulfur colloid. Stimulates uptake of sulfur colloid but does not affect uptake of leukocytes. None 7. In-111 and Tc-99m-labeled white blood cells (WBC) accumulation have been observed in all of the following conditions/sites EXCEPT: Debridement sites. Vascular access lines. Focal seizures. Gastrointestinal bleeding. None 8. Fever of unknown origin (FUO) can be caused by all of the following disorders/factors EXCEPT: Infection. Drugs. Neoplasm. Stress. None 9. Flow imaging is an essential part of all of the following nuclear medicine procedures EXCEPT: Tagged white blood cells for osteomyelitis diagnosis 3-Phase bone scan for osteomyelitis diagnosis Tagged red blood cells (RBCs) for liver hemangioma imaging Tc-99m pertechnetate for brain death scintigraphy None 10. In which of the following causes of fever of unknown origin (FUO) diagnostic leukocyte scintigraphy may be especially valuable? Infection Neoplasm Systemic rheumatic disease Granulomatous disorder None 1 out of 10 Time's upTime is Up! By Nasser AlMutairi|2021-03-31T14:32:35+03:00March 31st, 2021| Share This Post With Others! FacebookXLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Leave a ReplyCancel reply
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