C1: Review Questions

Question 1

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:
i. Illness occurs
ii. Injury occurs
iii. A specific imaging procedure for health screening purposes is called for

Answer 1

1, 2, and 3

Question 2

Effective measures employed by radiation workers to safeguard patients, personnel, and the general public from unnecessary exposure to ionizing radiation defines:

Answer 2

Radiation protection

Question 3

Which of the following is a method that can be used to answer patient’s questions about the amount of radiation received from a radiographic procedure?

Answer 3

BERT

Question 4

The term optimization for radiation protection (ORP) is synonymous with what?

Answer 4

As low as reasonably achievable (ALARA)

Question 5

Monitoring and reporting of patient dose for CT and interventional procedures can lead to:

Answer 5

A reduction in patient radiation dose

Question 6

The amount of ionizing produced in the air when ionizing radiation is present is known as:

Answer 6

Exposure

Question 7

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?

Answer 7

Diagnostic efficacy

Question 8

The millisievert (mSv) is equal to:

Answer 8

1/1000 of a sievert

Question 9

An effective radiation safety program requires a firm commitment to radiation safety by:
i. Facilities providing imaging services
ii. Radiation workers
iii. Patients

Answer 9

1 and 2 only

Question 10

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:

Answer 10

Higher effective dose than would an adult, but the image produced will appear to be of acceptable quality