Responsibilites

Question 1

Term for Responsibility for, and control of, quality radiation safety and technical aspects of all x-ray exams

Answer 1

General supervision

Question 2

Fluoroscopy exams should by guided by _____ concept

Answer 2

ALARA

Question 3

The _____ of 1968 is aimed at minimizing pt. and operator x-ray exposure, w/o sacrificing diagnostic info.

Answer 3

Radiation control for health and safety act

Question 4

_____ are prohibited from performing fluoroscopic procedure

Answer 4

limited x-ray technicians

Question 5

_____ must be notified when individuals are exposed to radiation , for other than prescribed medical purposes, in excess of the limits noted

Answer 5

Stat department of health services

Question 6

_____ notification is required if an individual has received :

• –A total effective dose equivalent of 25 rems (0.25 Sv) or more
• –An eye dose equivalent of 75 rems (0.75 Sv) or more
• –A shallow-dose equivalent to the skin or extremities of 250 rems (2.5 Sv) or more

Answer 6

Immediate notification

Question 7

____ notification is required if an individual has received within 24 hours:

• –Total effective dose equivalent exceeding 5 rems (0.05 Sv) or
• –An eye dose equivalent exceeding 15 rems (0.15 Sv) or
• –A shallow-dose of equivalent to the skin or extremities exceeding 50 rems (0.5 Sv)

Answer 7

Twenty-four hour notification

Question 8

Renewal of certificates or permits must be filed at least ____ prior to the expiration date

Answer 8

30 days

Question 9

Any change of name or address must be reported to the Department of Health Services, Radiologic Health Branch in Sacramento within ___ of that change

Answer 9

30 days

Question 10

Any change of name or address must be reported to _______ Sacramento within 30 days of that change

Answer 10

Department of Health services , radiologic health branch

Question 11

Name the 2 broad classes of biological impact

Answer 11

1. Somatic

2. Genetic

Question 12

list some somatic changes

Answer 12

1. injuries to superficial tissue
2. Induction of cancer
3. Cateract formation, life span shortneing
4. Injuries to fetus/embryo

Question 13

_____ is a resonable indicator of doses to other internal organs which are sensitive to cancer induction.

-Exams include:

Answer 13

red bone marrow

1. Barrium enema
2. Upper GI series
3. Abdominal angiography

Question 14

___ & __ may be useful to determine the probability of certain effects occuring.

Answer 14

Thyroid and skim measurements

Question 15

_____ is often determined by a procedure since it may indicate the level of doses received by organs near the point of interest

Answer 15

skin dose

Question 16

____ refers to effects exhibited in future offspring of persons who have been irradiated

Answer 16

genetic effects

Question 17

Name exams that expose the gonads to primary x-ray beam

Answer 17

1. BE exams
2. IVP
3. Lumbar spine
4. Hips/pelvis
5. Upper femur

Question 18

When the reproductive cells are irradiated, changes may be produced in ))) or in the ___/

Answer 18

1. genes

2. Chromosones

Question 19

The GSD is a function of 3 parameters:

Answer 19

1. # of future children
2. X-ray exam rate
3. Mean gonad dose per exam

Question 20

The lower the GSD , the lower the ____

Answer 20

number of mutation

Question 21

are techs allowed to hold pt. or the film?

Answer 21

no

Question 22

What are 2 types of radiation

Answer 22

1. useful x-ray beam
2. Leakage radiation
3. Scatter radiation

Question 23

The chief danger to operator during fluoro procedure is ____ coming primarily coming from the ____.

Answer 23

1. scatter radiation

2. Patient

Question 24

Fluoro technologist be adequately protected from ____________

Answer 24

scatter radiation

Question 25

Fluoro technologist and any individuals in x-ray room during exposure should wear protective apron of at least ______mm lead (Pb), preferably ________ mm lead.

Answer 25

1. .25 mm Pb

2. .50 mm PB

Question 26

Other protective devices other than lead aprons are:

Answer 26

1. thyroid shield
2. overhang shield
3. mobile screen
4. Protective gloves
5. Hinged or sliding panel

Question 27

Why is radiation monitoring performed?

Answer 27

to verify that individuals receive less than the maximum permissible dose equivalent.

Question 28

what are the acceptable personnel monitoring devices?

Answer 28

1. film badge

2. Thermoluminescent dosimeter (TLD)

Question 29

For special purposes , what may be worn in addition to acceptable personnel monitoring devices

Answer 29

1. Pocket chamber or dosimeter

2. Audible warning device

Question 30

What is the most common personnel monitoring?

and where should it be worn?

Answer 30

Film badge

• outside the apron at collar level

Question 31

____ & ___produce the the highest occupational radiation exposure for personnel

Answer 31

fluoroscopy & special radiographic procedures

Question 32

What are advantages and disadvantages to TLD

Answer 32

Advantages :

• determines dose more accurately
• May be worn up to 3 months
• Not affected by temp. changes

Disadvantages:

• Expensive
• once read, information is ereased

Question 33

What is the main advantage of film badge?

Answer 33

the radiographic film itself because it is a legal record of personnel exposure

Question 34

What is the basic annual DL

-Lens of the eye?
Other organs?

Answer 34

50 mSv/ year

• 150 mSv/ year
• 500 mSv/ year

Question 35

The cumulative whole-body DL is ___ , time age in years.

Answer 35

10 mSv

Question 36

The DL during pregnancy is ____ but once pregnancy has been declared, monthly exposure shall not exceed ___.

Answer 36

1. 5 mSv

2. 0.5 mSv