Golden Sheets set 5 (101-125)

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Golden Sheets set 5 (101-125)
2014-04-18 16:16:57
golden sheets
Golden sheets set 5 (101-125)
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  1. What test do you use to find out how many white blood cells a person has?
    A) CBC
    B) hemoglobin
    C) hematocrit
    A) CBC (cell count)
    (this multiple choice question has been scrambled)
  2. What do you use lead in the nose?
    to protect the internal membrane & to keep the radiation from going to deep and also to protect the lens
  3. What is the most radio-resistant Lung Cancer?
    Small cell is the most aggressive;
  4. What is the treatment for Glioma?
    Surgery (then observation); if needed do post op radiation
  5. Define Agensis
    absence of a body part
  6. What is the location of suprasternal notch?
    A) C2-3
    B) C5-6
    C) T2-3
  7. The patient received whole body irradiation. What causes death?
    Cerebrovascular Syndrome occurs after 10,000 cGy
  8. What are the treatment fields for lungs?
    AP/PA parallel opposed (typically includes primary tumor volume and adjacent mediastinum)
  9. What is TPR?
    Ratio of the absorbed dose at a given depth in a phantom to the absorbed dose at the same point at a reference depth in phantom.

    TPR= dose in tissue/dose in phantom
  10. What is the photoelectric interaction?
    • only interaction with the capacity to produce a useful image on the film. 
    • Incident photon penetrates deep into the atom and ejects an inner shell electron
  11. Ascites is a common symptom of what type of cancer?
  12. Define Ascites
    • Extended abdomen
    • accumulation of fluid in the abdominal (peritoneal) cavity
  13. Define Leukoplakia
    Small, white raised patches on the mucous membrane
  14. What is the treatment for low grade glioblastoma?
    • surgery (gross total resection) followed by observation
    • radiation if needed post op 50-55 Gy
  15. What is the anatomy of the hypo-pharynx?
    • pyriform sinuses (most common)
    • post cricoid
    • lower posterior pharyngeal walls below the base of the tongue

    level of the C3-C6
  16. What is TMR?
    dose in tissue/dose in phantom (d-max)
  17. What is TAR?
    The ratio of the absorbed dose at a given depth in phantom to the absorbed dose at the same point in free space

    TAR = dose in tissue/ dose in air
  18. Describe the Compton interaction
    produced when an x-ray photon interacts with an outer shell orbital electron with sufficient energy to eject the photon from orbit and alter is own path
  19. Define Leukopenia
    low white blood cells
  20. What does pituitary effect?
    The pituitary is the "thermostat" that controls all the other glands that secrete hormones
  21. What is the function of a scattering foil?
    • used in electron mode.
    • The target is retracted and a scattering foil that matches the electron energy called for is moved into place
  22. What is the function of the flattening filter?
    shapes the x-ray beam in its cross sectional dimensions
  23. What is beneficience?
    Doing good, and calls on health care professionals to act in the best interest of patients, even when it might be inconvenient or sacrifices must be made
  24. What is the dose for treating lung?
    • curative NSCLS = 6000-7500cGy
    • SCLC = 4500-6000cGy
    • Boost = 4000-4500cGy
    • organ tolerance=2000 cGy
  25. What is the dose for treating the bladder?
    45-50 Gy - large pelvic field

    15-20 Gy boost fields