Units and Conversion

Question 1

Believes that low doses of ionizing radiation is beneficial

Answer 1

radiation hormesis

Question 2

Unit of radiation exposure or intensity

Answer 2

Roentgen (R)

Question 3

Radiation absorbed dose (received by patients)

Answer 3

RAD

Question 4

1 Gray = __ RAD

Answer 4

100

Question 5

Standard unit for RAD

Answer 5

Gray

Question 6

Unit used to measure radioactivity in nuclear medicine

Answer 6

Curie (Ci)

Question 7

Standard unit for Curie

Answer 7

Becquerel

Question 8

Unit for occupational dose monitoring (equivalent dose - dosimeter)

Answer 8

rem

Question 9

Standard unit for rem

Answer 9

Sievert (Sv)

Question 10

1 Sv = __ rem

Answer 10

100

Question 11

Annual dose limit for occupational exposure

Answer 11

50 mSv

Question 12

Cumulative dose limit for occupational exposure

Answer 12

10 mSv x age

Question 13

0.1 Gray = __ milligray

Answer 13

100

Question 14

800 RAD = ___ gray

Answer 14

8

Question 15

300 REM = ___ sievert

Answer 15

3

Question 16

One thousand five hundred (1500) rem equals ___ Sieverts

Answer 16

15

Question 17

Which of the following units are not SI units?
1. Roentgens
2. Coulombs per kilogram, grays, Sieverts
3. Rads and rems

Answer 17

1 and 3

Question 18

If a patient receiving x-ray therapy treatment receives a total dosage of 6000 rads, the dosage may be recorded as _____ if the SI system is used.

Answer 18

60 Gy