Radiation Safety and Protection

Question 1

According to the 10 day rule, chances of a female being pregnant are improbable when?

Answer 1

During the 10 days since the first day of the menstrual cycle

Question 2

Which of the following concerns of good communication effects minimizing radiation exposure?

A. Clarification of breathing instructions
B. Correct patient identification
C. Answering questions regarding preparation for examination
D. All of the above

Answer 2

All of the above

Question 3

Which of the following groups should be shielded?

A. Females between the ages of 13 and 55
B. Males and females between the ages of 13 and 55
C. Infants, children, and females under the age of 55
D. All patients should be shielded

Answer 3

D. All patients should be shielded

Question 4

What is the purpose of a collimator?

Answer 4

To limit the primary beam and reduce the amount of scatter being produced

Question 5

Which patient position will produce the lowest exposure to radiation to the radiosensitive areas of the body?

Answer 5

PA

Question 6

Which of the following sets of technical factors will give the patient the highest radiation exposure?

A. 100 mAs, 60 KVP
B. 50 mAs, 70 KVP
C. 25 mAs, 80 KVP
D. 12.5 mAs, 90 KVP

Answer 6

A. 100 mAs, 60 KVP

Question 7

The three cardinal rules of radiation protection for the technologist include:

Answer 7

Time, distance, shielding

Question 8

How many times should an X-ray scatter before it enters the control booth?

Answer 8

Two

Question 9

The maximum permissible dose for a pregnant technologist with respect to the fetus is:

Answer 9

0.5 rems

Question 10

Which of the following units should be used when referring to minimum radiation exposure required for tissue damage?

A. Roentgen
B. Rad
C. Rem
D. Curie

Answer 10

B. Rad

Question 11

What is the highest potent power?

Answer 11

mAs

Question 12

What does Rad stand for and what is it?

Answer 12

Radiation Absorbed Dose, what is absorbed by the patient