core

Question 1

Minimum of ___ filtration is necessary for radiographic units capable of technique exceeding 70 kvp

Question 2

dose limit for entire gestational period of fetus

Question 3

anual dose limit for occupational worker

Question 4

transformer with more winding on primary side

Question 5

the link between radiation dose and genetic effect?

Answer 5

has been demonstrated in animal studies
increased risk to humans cannot be predicted with respect to individual

Question 6

what is the national council on radiation protection and measurements (NCPR) recommendation for the amount of total filtration?

Answer 6

2.5 mm AL equiv

Question 7

whats the term for radiation that escapes from the xray tube housing?

Answer 7

Leakage radiation

Question 8

Which of the following is an acronym for a common type of personal dosimeter?

Answer 8

TLD

Question 9

The SI unit used to report occupational dose to radiation workers is?

Answer 9

mSv

Question 10

which type of X-ray photon interaction with the body is primarily responsible for the radiation dose absorbed by the patient?

Answer 10

Photoelectric

Question 11

what is Erythema, as it relates to radiation exposure?

Answer 11

Reddening of skin caused by high radiation dose

Question 12

what changes will decrease pt dose?
1. incresae mAs 15%
2. increase kVp 15%, while decreasing mAs to compensate
3. decreasing grid ratio to 6:1 ratio, while decreasing mAs to compensate

Answer 12

2&3

Question 13

at what kVp levels do comton interations occur?

Answer 13

they occur throuought the diagnositc radiology kVp range