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sandy2696
on FreezingBlue Flashcards.
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What side effect is the latest side effect after radiation?
fibrosis
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What is the order of parts inside the treatment machine?
Gantry, electron gun, waveguide, bending magnet, target, collimator & jaws
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What does the nasopharynx drain too?
retropharyngeal nodes to superior jugular to posterior cervical to lateral retropharyngeal nodes
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What is considered a low residue diet?
soft foods and low fats
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What is workload and use factor used for?
shielding
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What type of cancer is the lower esophagus?
Adenocarcinoma
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What is considered to be a sterile procedure?
catherization, etc....
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What is it called when a doctor surgically opens and inserts something into the patient? (terminology)
Brachytherapy
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What kind of blood test is used to test how many white blood cells there are?
- CBC
- (Tasha's notes say WBC, however CBC also has the WBC included)
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What are the most hazardous materials in blocks?
cadmium and lead
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How far does an electron block have to be from the skin surface?
5cm
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What is Agenesis?
absence or incomplete development of an organ
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What is the TD 5/5 of the heart that causes pericarditis?
4000cGy
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What is the minimum energy necessary for pair production?
1.02 MV
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How would a patient receive an exogenous disease or infection
vector - fomite - parasite - host
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What is the most common site of occurrence for an astrocytoma?
cerebral hemisphere
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Where is the pyriform sinus located?
located in the hypopharynx - lies between the throat & the esophagus
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Ascites is common in what type of cancer?
Ovarian
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Why is shielding used for nasal carcinoma
to protect then lens of the eye and inside the nostrils
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What is cachexia
syndrome of progressive weight loss, fatigue, muscle atrophy, weakness
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What is SCV syndrome? What type of tumor causes it?
compression of the superior vena cava that causes edema in face, neck and arms & cyanosis
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Why give external radiation with internal brachytherapy for treating a cervix
medically inoperable patients will receive tandem & ovoids, and to go after lymph nodes
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What is the order of lymph node drainage for a seminoma?
paraaortics
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Does half life increase, decrease or stay the same as the source decays
stays the same
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What is the most common brain tumor in children
medulloblastoma
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