©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
Radiation Biology Exam Questions With
Correct Answers 100% Verified.
What are the consequences of ionization in the human cell? - Answer✔Creation of unstable
atoms, production of free electrons, production of low-energy x-ray photons, creation of
reactive free radicals capable of producing substances poisonous to the cell, creation of new
biologic molecules detrimental to the living cell, injury to the cell that may manifest itself as
abnormal function or loss of function. (box 1-1 on page 2)
When is medical radiation exposure considered unnecessary? - Answer✔When it doesn't
benefit the patient- examples: lack of collimation, wrong exam, repeats.
When it doesn't enhance the quality of the study
How can the background equivalent radiation time (BERT) method be used to eliminate a
patient's fears about medical radiation exposure? - Answer✔The BERT method compares the
amount of radiation received by the patient with natural background radiation received over a
specific period of time. BERT helps emphasize that radiation is an innate part of our
environment and it is easy for patients to understand.
Describe how radiographers can use the ALARA concept in the performance of their daily
responsibilities? - Answer✔Radiographers should use the least amount of time as possible,
stand back as far as you can, use correct SID for patients, and shield yourself and patients for all
exams (if possible).
How does implementation of the TRACE Program improve patient safety? - Answer✔The TRACE
Program improves patient safety by allowing a greater radiation safety understanding through
patient and community education
How will a patient benefit from standardized radiation dose reporting? - Answer✔All exams
need to be dictated into every radiologic report. This will help the physician know if additional
radiologic procedures are advisable with having the patient radiation dose history in hand.
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
(page 11) Also there will be only a certain amount of exposure a given exam should produce,
protecting the patient from over exposure
Why should the ALARA philosophy be established and maintained as a main part of every
health care facility's radiation safety program? - Answer✔Our main goal as radiographers is to
provide the patient with an acceptable diagnostic image using the lowest amount of radiation
possible. Therefore, the ALARA philosophy is helpful in achieving this goal and holding
radiographers responsible for the patient's safety.
When are patients more likely to overcome any radiation phobia and be willing to assume a
small risk of possible biologic damage? - Answer✔The patient needs to understand that the
benefit of having an x-ray to diagnose pathology is greater than the risk of the negative aspects
of an x-ray. When a patient understands the technology and the great lengths a radiographer
goes to protect them from unnecessary radiation, the patient may be more willing to proceed
with the x-ray procedure.
On what premise is BERT based? - Answer✔BERT is based on an annual US population exposure
of 3 millisieverts per year. It is used to compare x-ray procedures to comparable natural
background radiation examples to the patient.
In the medical industry with reference to the radiation sciences, how is risk defined? -
Answer✔Risk is defined in reference to the radiation sciences as the possibility of inducing
radiogenic cancer or genetic defect.
What is radiation? - Answer✔Kinetic energy that passes from one location to another and can
have many manifestations
How do electromagnetic and particulate radiations differ? - Answer✔Electromagnetic has
enough energy to knock out the orbital electrons. Particulate has sufficient energy to cause
ionization by direct atomic collision. (page 17)
When inhaled into the lungs of a human why is radon more dangerous than thoron? -
Answer✔Because there is a larger quantity of it. It's the leading cause of lung cancer
(powerpoint and page 22).
What is a solar flare? - Answer✔A solar flare is a tremendous explosion on the surface of the
sun (page 26).
Explain the use of the radiation quantity "equivalent dose" (EqD). - Answer✔It is used for
radiation protection purposes when a person receives exposure from various types of ionizing
radiation ( page 19).
2
Radiation Biology Exam Questions With
Correct Answers 100% Verified.
What are the consequences of ionization in the human cell? - Answer✔Creation of unstable
atoms, production of free electrons, production of low-energy x-ray photons, creation of
reactive free radicals capable of producing substances poisonous to the cell, creation of new
biologic molecules detrimental to the living cell, injury to the cell that may manifest itself as
abnormal function or loss of function. (box 1-1 on page 2)
When is medical radiation exposure considered unnecessary? - Answer✔When it doesn't
benefit the patient- examples: lack of collimation, wrong exam, repeats.
When it doesn't enhance the quality of the study
How can the background equivalent radiation time (BERT) method be used to eliminate a
patient's fears about medical radiation exposure? - Answer✔The BERT method compares the
amount of radiation received by the patient with natural background radiation received over a
specific period of time. BERT helps emphasize that radiation is an innate part of our
environment and it is easy for patients to understand.
Describe how radiographers can use the ALARA concept in the performance of their daily
responsibilities? - Answer✔Radiographers should use the least amount of time as possible,
stand back as far as you can, use correct SID for patients, and shield yourself and patients for all
exams (if possible).
How does implementation of the TRACE Program improve patient safety? - Answer✔The TRACE
Program improves patient safety by allowing a greater radiation safety understanding through
patient and community education
How will a patient benefit from standardized radiation dose reporting? - Answer✔All exams
need to be dictated into every radiologic report. This will help the physician know if additional
radiologic procedures are advisable with having the patient radiation dose history in hand.
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
(page 11) Also there will be only a certain amount of exposure a given exam should produce,
protecting the patient from over exposure
Why should the ALARA philosophy be established and maintained as a main part of every
health care facility's radiation safety program? - Answer✔Our main goal as radiographers is to
provide the patient with an acceptable diagnostic image using the lowest amount of radiation
possible. Therefore, the ALARA philosophy is helpful in achieving this goal and holding
radiographers responsible for the patient's safety.
When are patients more likely to overcome any radiation phobia and be willing to assume a
small risk of possible biologic damage? - Answer✔The patient needs to understand that the
benefit of having an x-ray to diagnose pathology is greater than the risk of the negative aspects
of an x-ray. When a patient understands the technology and the great lengths a radiographer
goes to protect them from unnecessary radiation, the patient may be more willing to proceed
with the x-ray procedure.
On what premise is BERT based? - Answer✔BERT is based on an annual US population exposure
of 3 millisieverts per year. It is used to compare x-ray procedures to comparable natural
background radiation examples to the patient.
In the medical industry with reference to the radiation sciences, how is risk defined? -
Answer✔Risk is defined in reference to the radiation sciences as the possibility of inducing
radiogenic cancer or genetic defect.
What is radiation? - Answer✔Kinetic energy that passes from one location to another and can
have many manifestations
How do electromagnetic and particulate radiations differ? - Answer✔Electromagnetic has
enough energy to knock out the orbital electrons. Particulate has sufficient energy to cause
ionization by direct atomic collision. (page 17)
When inhaled into the lungs of a human why is radon more dangerous than thoron? -
Answer✔Because there is a larger quantity of it. It's the leading cause of lung cancer
(powerpoint and page 22).
What is a solar flare? - Answer✔A solar flare is a tremendous explosion on the surface of the
sun (page 26).
Explain the use of the radiation quantity "equivalent dose" (EqD). - Answer✔It is used for
radiation protection purposes when a person receives exposure from various types of ionizing
radiation ( page 19).
2
