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Ch 6 Radiation Therapy Exam Questions with Verified Answers
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  • Module
  • Radiation therapy
  • Institution
  • Radiation Therapy

Boost - Answer-This term commonly is used to describe a smaller field within the larger filed of radiation that typically is treated at the end of radiation Nausea Diarrhea Mucositis Xerostomia Esophagitis Skin Reaction - Answer-Acute toxicity related to radiation therapy Radiosensitivit...

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  • October 7, 2024
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Ch 6 Radiation Therapy Exam Questions
with Verified Answers
Boost - Answer-This term commonly is used to describe a smaller field within the larger
filed of radiation that typically is treated at the end of radiation

Nausea
Diarrhea
Mucositis
Xerostomia
Esophagitis
Skin Reaction - Answer-Acute toxicity related to radiation therapy

Radiosensitivity - Answer-______________________ is concerned with how sensitive
tumor cells and other structures and tissues respond to the radiation. It is an important
consideration, as acute and late toxicities are related to this concept

G2 and M phases - Answer-Cells in the late _________and___________ phases are
most sensitive to RT, whereas those in the S phase are more resistant

stereotactic radiosurgery - Answer-This type of treatment is used to treat tumors that
are intracranial or extracranial and primary or metastatic in origin

-Metastatic disease to the brain
-Lung
-Spinal Cord
-may be used as a primary treatment for prostate cancer using more than one treatment
- Answer-Stereotactic radiosurgery treatment can be used in patients with?

Gray (Gy) - Answer-Total dose of radiation

Centigray (cGy) - Answer-Individual doses of radiation

Fractionation - Answer-The total dose of RT is divided into equal fractions. This is one
of the common methods of delivering RT, with treatments given once daily, Monday
through Friday, for a prescribed number of weeks

269 - Answer-BREAST CANCER

-lumpectomy
-mastectomy
--metastatic disease - Answer-Radiation may be used after:

, four to five weeks - Answer-Photons are administered the first
__________to______________ weeks after treatment

DCIS
or
Invasive breast cancer - Answer-Patients who receive BCT may have a diagnosis of
_________________or________________

42-59% - Answer-Women who under went breast conserving surgery and RT had a
___________________% decrease in ipsilateral local recurrence compared to women
who are treated with BCT alone

CT
and
simulation - Answer-The treatment planning process for the management of breast
cancer includes:

heart block - Answer-If a patient is at risk for cardiac exposure, a
____________________ may be placed to minimize the RT dose

tangential fields
-medial and lateral fields that are directly obliquely at the breast

and a variety of additional fields if nodal involvement exists - Answer-Common RT
treatment fields to the whole breast include:

45-50 gray (Gy) - Answer-For whole breast radiation, patients typically are prescribed a
dose of _______________

1.8-2 Gy

five to six weeks - Answer-This dose is divided into daily doses of ______________
which are administered five days a week over the course of
______________to______________ weeks

boost field
-this field usually is treated alone once the patient has completed treatment to the entire
breast
-the treatment field is around the surgical scar, and treatment is aimed at local tissues,
as this area has a high chance of recurrence - Answer-Patients undergoing BCT
commonly receive treatment to what is known as a ___________________

accelerated partial breast irradiation - Answer-Partial breast irradiation (PBI) is
commonly referred to as ___________________ and can be performed using the
MammoSite treatment device, on a linear accelerator, or via a high dose rate (HDR)
brachytherapy.

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