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Mock Board #3 Radio Therapy Exam Questions and Answers
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  • Course
  • Radiation therapy
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  • Radiation Therapy

Which treatment modality delivers the treatment while dose rates and field sizes change? Electron beam therapy Step and shoot intensity modulated radiation therapy (IMRT) Volumetric modulated arc therapy (VMAT) 3D - Answer-Volumetric modulated arc therapy (VMAT) Which of the followin...

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  • October 7, 2024
  • 25
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • mock board 3 radio therapy exam questions and ans
  • which treatment modality delivers the treatment wh

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  • Radiation therapy
  • Radiation therapy

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Mock Board #3 Radio Therapy Exam
Questions and Answers
Which treatment modality delivers the treatment while dose rates and field sizes
change?

Electron beam therapy

Step and shoot intensity modulated radiation therapy (IMRT)

Volumetric modulated arc therapy (VMAT)

3D - Answer-Volumetric modulated arc therapy (VMAT)

Which of the following is NOT as common a metastatic route for Acute Lymphocytic
Leukemia (ALL)?

Lymph nodes

Lung

Testicles

Liver - Answer-Lung

With an isocentric set-up, where would the isocenter be located?

At a determined depth within a patient

At the field edge

On the entrance point

At the exit point - Answer-At a determined depth within a patient

When planning the patient treatment, the radiation therapist discovers that an extended
distance is needed to encompass the entire femur. What happens to the field size at an
extended distance set up?

Field size decreases

Field size remains the same

Field size increases

,This is unknown until other factors are decided upon - Answer-Field size increases

The benefit of kV imaging is due to the predominant ___________ interaction.
Scattering

Scattering

Low density

Low contrast

Photoelectric - Answer-Photoelectric

Which of the following is NOT required to be included in the patient's prescription for
radiation therapy?

Elapsed calendar days

Type of radiation

Prescribed dose

Energy - Answer-Elapsed calendar days

Surgical palliation provides __________ due to the disease process.

Localization of tumor genesis

Curative response of tumor

Relief of patient's symptoms

Curative effect of metastatic cells - Answer-Relief of patient's symptoms

1 Gy is equivalent to ___ rads.

1000

100

1

10 - Answer-100

Signs and symptoms of shock include:

, Bradycardia and increased blood pressure.

Tachycardia and increased blood pressure.

Bradycardia and decreased blood pressure.

Tachycardia and decreased blood pressure. - Answer-Tachycardia and decreased
blood pressure.

How many monitor units are needed to deliver 180 cGy to the 90% isodose line for a
field using 12 MeV electrons? The cone factor is 1.3, and the output is 1 cGy/MU.

180 MU

212 MU

154 MU

124 MU - Answer-154 MU

The organ at greatest risk when treating the para-aortics is the:

Kidney.

Rectum.

Liver.

Bladder. - Answer-Kidney

Which SI unit is used to measure radiation exposure?

Sievert

Coulomb

Gray

Becquerel - Answer-Coulomb

Areas at a radiation facility that are occupied by individuals such as patients, visitors
and those who do not work with radiation sources are designated as:

Free access areas.

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