Radiation Protection in Medical
Radiography - 9th Edition with
questions and well verified answers
actual exam!!! 2026
1, 2, and 3 - ANSWER -A patient may choose to assume a relatively small statistical risk
of exposure to ionizing radiation for a physician to obtain essential diagnostic medical
information when:
1. Illness occurs
2. Injury occurs
3. A specific imaging procedure for health screening purposes is called for
Radiation protection - ANSWER -Effective measures employed by radiation workers to
safeguard patients, personnel, and the general public from unnecessary exposure to ionizing
radiation defines:
BERT - ANSWER -Which of the following is a method that can be used to answer
patients' questions about the amount of radiation received from a radiographic procedure?
As low as reasonably achievable (ALARA) - ANSWER -The term optimization for radiation
protection (ORP) is synonymous with which of the following?
A reduction in patient radiation dose - ANSWER -Monitoring and reporting of patient
dose for CT and interventional procedures can lead to:
,Exposure - ANSWER -The amount of ionization produced in the air when ionizing
radiation is present is known as:
Higher effective dose than would an adult, but the image produced will appear to be of
acceptable quality - ANSWER -If a child receives a dose of radiation in a CT scan where
adult protocols are used, the child, because of being smaller in size, will receive a:
1, 2, and 3 - ANSWER -The amount of radiation actually received by a patient from a
diagnostic x-ray procedure may be indicated in terms such as:
1. Entrance skin exposure (ESE), which includes skin and glandular dose
2. Bone marrow dose
3. Gonadal dose
Ionization - ANSWER -Which of the following processes is the foundation for imaging of
the interaction of x-rays with human tissue?
It was extremely difficult to measure the amounts of radiation people received. -
ANSWER -Why are the long-term effects, such as an increased incidence of cancer in the
exposed population living near Japan's Fukushima Daiichi Nuclear Plant, unable to be
accurately determined?
2.3 mSv - ANSWER -According to the most recent available data from 2016, what is the
radiation dose from natural background radiation attributed to exposure from radon and
thoron?
Diagnostic efficacy - ANSWER -The degree to which the diagnostic study accurately
reveals the presence or absence of disease in the patient while adhering to radiation safety
guidelines defines which of the following terms?
1⁄1000 of a sievert - ANSWER -The millisievert (mSv) is equal to:
1 and 2 only - ANSWER -An effective radiation safety program requires a firm
commitment to radiation safety by:
, 1. Facilities providing imaging services
2. Radiation workers
3. Patients
B. Radioactive elements in the crust of the Earth and in the human body - ANSWER -
Which of the following are natural sources of ionizing radiation?
A. Medical x-radiation and cosmic radiation
B. Radioactive elements in the crust of the Earth and in the human body
C. Radioactive elements in the human body and a diagnostic x-ray machine
D. Radioactive fallout and environs of atomic energy plants
B. A substantial decrease within a few days in the number of lymphocytes or white blood cells
that are the body's primary defense against disease. - ANSWER -An equivalent dose as
low as 250 mSv delivered to the whole body may cause which of the following within a few
days?
A. An increase in the number of lymphocytes in the circulating blood.
B. A substantial decrease within a few days in the number of lymphocytes or white blood cells
that are the body's primary defense against disease.
C. A drop immediately to zero in the lymphocyte count. D. A large increase in the number of
platelets.
C. It is not received all at once but instead is delivered over a period of years at changing dose
rates. - ANSWER -How is actual radiation dose to the global population from
atmospheric fallout from nuclear weapons testing received?
A. It is received all at once within a short period of time after such a test.
B. It is received in large quantities within a period of 2 years after such a test.
C. It is not received all at once but instead is delivered over a period of years at changing dose
rates.
D. No fallout from such testing is ever received.
Radiography - 9th Edition with
questions and well verified answers
actual exam!!! 2026
1, 2, and 3 - ANSWER -A patient may choose to assume a relatively small statistical risk
of exposure to ionizing radiation for a physician to obtain essential diagnostic medical
information when:
1. Illness occurs
2. Injury occurs
3. A specific imaging procedure for health screening purposes is called for
Radiation protection - ANSWER -Effective measures employed by radiation workers to
safeguard patients, personnel, and the general public from unnecessary exposure to ionizing
radiation defines:
BERT - ANSWER -Which of the following is a method that can be used to answer
patients' questions about the amount of radiation received from a radiographic procedure?
As low as reasonably achievable (ALARA) - ANSWER -The term optimization for radiation
protection (ORP) is synonymous with which of the following?
A reduction in patient radiation dose - ANSWER -Monitoring and reporting of patient
dose for CT and interventional procedures can lead to:
,Exposure - ANSWER -The amount of ionization produced in the air when ionizing
radiation is present is known as:
Higher effective dose than would an adult, but the image produced will appear to be of
acceptable quality - ANSWER -If a child receives a dose of radiation in a CT scan where
adult protocols are used, the child, because of being smaller in size, will receive a:
1, 2, and 3 - ANSWER -The amount of radiation actually received by a patient from a
diagnostic x-ray procedure may be indicated in terms such as:
1. Entrance skin exposure (ESE), which includes skin and glandular dose
2. Bone marrow dose
3. Gonadal dose
Ionization - ANSWER -Which of the following processes is the foundation for imaging of
the interaction of x-rays with human tissue?
It was extremely difficult to measure the amounts of radiation people received. -
ANSWER -Why are the long-term effects, such as an increased incidence of cancer in the
exposed population living near Japan's Fukushima Daiichi Nuclear Plant, unable to be
accurately determined?
2.3 mSv - ANSWER -According to the most recent available data from 2016, what is the
radiation dose from natural background radiation attributed to exposure from radon and
thoron?
Diagnostic efficacy - ANSWER -The degree to which the diagnostic study accurately
reveals the presence or absence of disease in the patient while adhering to radiation safety
guidelines defines which of the following terms?
1⁄1000 of a sievert - ANSWER -The millisievert (mSv) is equal to:
1 and 2 only - ANSWER -An effective radiation safety program requires a firm
commitment to radiation safety by:
, 1. Facilities providing imaging services
2. Radiation workers
3. Patients
B. Radioactive elements in the crust of the Earth and in the human body - ANSWER -
Which of the following are natural sources of ionizing radiation?
A. Medical x-radiation and cosmic radiation
B. Radioactive elements in the crust of the Earth and in the human body
C. Radioactive elements in the human body and a diagnostic x-ray machine
D. Radioactive fallout and environs of atomic energy plants
B. A substantial decrease within a few days in the number of lymphocytes or white blood cells
that are the body's primary defense against disease. - ANSWER -An equivalent dose as
low as 250 mSv delivered to the whole body may cause which of the following within a few
days?
A. An increase in the number of lymphocytes in the circulating blood.
B. A substantial decrease within a few days in the number of lymphocytes or white blood cells
that are the body's primary defense against disease.
C. A drop immediately to zero in the lymphocyte count. D. A large increase in the number of
platelets.
C. It is not received all at once but instead is delivered over a period of years at changing dose
rates. - ANSWER -How is actual radiation dose to the global population from
atmospheric fallout from nuclear weapons testing received?
A. It is received all at once within a short period of time after such a test.
B. It is received in large quantities within a period of 2 years after such a test.
C. It is not received all at once but instead is delivered over a period of years at changing dose
rates.
D. No fallout from such testing is ever received.
