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What is the dose for treating the prostate?
- 72-80Gy
- nodal doses 45-50Gy
- seminal vesicles 54-56Gy
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What is the nasopharynx borders?
- **Superior-2cm beyond the tumor including the base of skull and sphenoid sinus
- **Posterior - 2cm of margin beyond mastoid process
- **Anterior - posterior third of the maxillary sinus and nasal cavity
- **Inferior- Thyroid notch
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Where does prostate cancer metastasis to first?
- Bone (typically the femur or hip)
- Liver
- Brain
- It mets via blood
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What do you include in the treatment field with soft tissue sarcoma?
leave a strip of muscle so lymph fluid can drain
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What is the most common histology of breast cancer
infiltrating ductal carcinoma
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Define step & shoot
- gantry goes to an angle delivers radiation, and then repeats at various angles.
- It can be IMRT or 3D
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Where is the pituitary gland located?
the sella tursica of the sphenoid bone
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If the patient falls, list in order what to do
- help the patient to the floor
- get the doctor to check patient
- write up incident report
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Isotope
What's the same?
What is different?
same: atomic number
different: number of nuetrons
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What is the curative dose for bladder cancer?
- 45 to 50Gy at 180cGy a day
- Smaller boost up to 6500cGy
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Put linac parts in order from target down
target - bending magnet - primary collimator - flattening filter - scattering foils - ion chamber - field light - range finder - collimator - isocenter
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Define: Stridor
- noisy breathing
- "creaking or grating noise"
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What is angina?
- chest pains
- a medical condition in which lack of blood to the heart causes severe chest pains
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Define leukoplakia
- small white patches -
- a precancerous condition that is seen as small thickened white patches, usually inside the mouth or vulva
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What is methotrexate?
- anti-cancer drugs. A drug that inhibits cellular reproduction.
- Used to treat certain types of cancer of the breast, skin, head & neck or lung
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Define anaplastic
cells divide rapidly but do not bear any resemblance to the normal cells, (structure or function)
loss of differentiation
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At what level does the carina bifurcate?
- T5; the trachea begins at the inferior border of the larynx and continues to the level of the thoracic vertebrae 5 where is bifurcates.
- This bifurcation is called the carina
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Define Lhermittes syndrome
electrical impulses that runs down the arm
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Be able to list 4 foods on a low residue diet
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Most common symptoms of pituitary cancer is
headaches
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What is the vertebral level of the iliac crest
L4
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What is the treatment for ALL leukemia
- Total Body Irradiation (TBI) doses are 1200 cGy in 3 days
- Chemo: Prednisone, Vincristine, L-Aspaginase
- Bone Marrow Transplant
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What is the purpose of RT after cancerous kidney is removed?
to kill off any cancer cells that were missed before they start regrowing
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Which energy is represented on the EM spectrum?
C) Gamma Rays
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Which 2 cancers would do well with hormone therapy?
prostate & breast
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