ASRT Mock 1 Exam Questions with 100% Verified Correct Answers 2024/2025
When a patient is treated with a source to axis distance (SAD) of 12 cm, what would the source to surface distance (SSD) be? - Correct Answer 88cm
If an orthogonal pair is taken with the first angle at 215 degrees, what wou...
when a patient is treated with a source to axis di
if an orthogonal pair is taken with the first angl
is an external landmark often used when
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ASRT Mock 1 Exam Questions with 100% Verified
Correct Answers 2024/2025
When a patient is treated with a source to axis distance (SAD) of 12 cm, what would the source to
surface distance (SSD) be? - Correct Answer 88cm
If an orthogonal pair is taken with the first angle at 215 degrees, what would the second angle be? -
Correct Answer 305 degrees
_________ is an external landmark often used when setting up whole brain treatments. - Correct
Answer EAM
A radiation therapist who is 37 years old should not have a lifetime effective dose exceeding: -
Correct Answer 370 mSv
What is the Tolerance Dose for 5% risk at 5 years (TD 5/5) for the kidney? - Correct Answer 23 Gy -
2300 cGy
What is the most common breast cancer diagnosis? - Correct Answer Infiltrating ductal carcinoma
A whole body dose of 100-1000 cGy would cause symptoms from which syndrome? - Correct Answer
hematopoetic
What is the single most effective way of preventing the spread of infection? - Correct Answer
Washing your hands
Esophageal radiation field margins should include ___ above and below the tumor to account for
nodular drainage. - Correct Answer 6 cm
As the field size increases, the percentage depth dose curve (PDD): - Correct Answer increases
Which of the following is not part of the oral cavity? - Correct Answer base of the tongue
The IMRT x-ray output consistency should be checked on a(n) __________ basis. - Correct Answer
monthly
, A whole body dose of 1000-5000 cGy would result in what type of acute radiation syndrome? -
Correct Answer gastrointestinal
215 monitor units (MU) will be delivered during a 315 degree arc. How many MUs per degree will be
delivered? - Correct Answer .68 mu/degree
A pituitary adenoma is a: - Correct Answer benign tumor
Thrombocytopenia is a condition in which the patient has a reduced number of: - Correct Answer
platelets
The most common side effect of patients being treated with external beam radiation therapy to the
vagina is: - Correct Answer dyspareunia
Hounsfield units measure: - Correct Answer attenuation
According to the American Joint Committee on Cancer staging system, T1b glottic cancer involves: -
Correct Answer both vocal cords
Which organization is responsible for establishing suggested dose limits for safe practices within the
United States? - Correct Answer National Council on Radiation Protection and Measurements (NCRP)
NRC (Nuclear Regulatory Commission) - Correct Answer regulates nuclear power industry, issues
licenses and approves design, construction and operation of nuclear power plants
Areas where the dose equivalent exposure is 0.1 rem/week are classified as: - Correct Answer
controlled areas
What is the Tolerance Dose for 5% risk at 5 years (TD 5/5) for the whole liver? - Correct Answer 30 Gy
A patient presenting with unilateral hearing loss and an enlarged cervical lymph node should be
evaluated for suspected lesion relating to which primary diagnosis: - Correct Answer nasopharyngeal
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