Midterm ch. 1

Question 1

A patient may elect to assume a relatively small statistical risk of exposure to ionizing radiation to obtain essential diagnostic medical information when:

Answer 1

1. Illness occurs
2. Injury occurs
3. A specific imaging procedure for health screening purposes is prudent
   * 1, 2, &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 patients’ 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 the term:

Answer 4

As low as reasonably achievable (ALARA)

Question 5

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

Answer 5

A reduction in patient radiation dose

Question 6

The amount of ionization 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:

Answer 9

1. Facilities providing imaging services
2. Radiation workers
   1 & 2

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 be of acceptable quality