Deck 7: Operator Protection

Question 1

It is predicted that the MPD will be reduced in the near future.

Answer 1

False

Question 2

The ALARA principle applies to both patient and operator protection in the field of dental radiography.

Answer 2

True

Question 3

Operators of dental radiographic equipment should be able to stand how far from the x-ray tube head during exposure:

A)3 feet.
B)6 feet.
C)12 feet.
D)20 feet.

Answer 3

6 feet.

Question 4

Which of the following is the formula to calculate the shielding or barrier requirements guide number?

A)W $\times$ U $\times$ T
B)W $\times$ B $\times$ S
C)U $\times$ T $\times$ S
D)U $\times$ B $\times$ T

Question 5

A film badge report contains information from the reporting period.It can also contain the accumulated quarterly,yearly,and lifetime exposure of the individual.

A)Both statements are true.
B)Both statements are false.
C)First statement is true,second is false.
D)First statement is false,second is true.

Question 6

Identify the true statement concerning film badges:

A)film badges are expensive.
B)the dental operator's radiation exposure can be easily evaluated.
C)dental professionals can wear the film badge during medical radiation procedures.
D)dental professionals can wear the film badge at all times,including indoor and outdoor.

Question 7

Dental professionals should be sensitive to patients' concerns about and possible fear of dental radiographs.There has been a rise in a public that is more aware of the risks associated with x-radiation exposure.

A)Both statements are true.
B)Both statements are false.
C)First statement is true,second is false.
D)First statement is false,second is true.

Question 8

Presently the maximum permissible dose (MPD)for dental workers with ionizing radiation is 4000 mrem per year.

Question 9

The dental practitioner should inform the patient that the radiographs are "prescribed" according to their immediate dental health needs,risk factors for dental diseases,and radiation history.

Question 10

Shielding or barrier requirements are based on all of the following factors EXCEPT one.Which one is the EXCEPTION?

A)CRESO
B)Workload
C)Kilovoltage
D)Use and occupancy factors

Question 11

Calculate the cumulative effective dose (CUMEfd)of a 30-year-old dental radiologist.

A)200 mSv
B)250 mSv
C)300 mSv
D)325 mSv

Question 12

Identify the true statement concerning film badges:

A)film badges are expensive.
B)the dental operator's radiation exposure can be easily evaluated.
C)dental professionals can wear the film badge during medical radiation procedures.
D)dental professionals can wear the film badge at all times,indoor and outdoor as well.

Question 13

For proper exposure technique all of the following are correct EXCEPT one.Which one is the EXCEPTION?.The operator should be a minimum of 6 feet away from the tube head (the source of radiation)and behind a suitable (acceptable)barrier when the exposure is made.

A)The patient may hold a drifting x-ray head during the exposure.
B)The operator should be a minimum of 6 feet away from the source of radiation.
C)The operator should be behind an acceptable barrier when the exposure is made.
D)The operator should not hold any receptor (film packet,digital sensor,or phosphor plate)in the patient's mouth.

Question 14

Film badges are used to measure the levels of radiation and potential exposure.To decrease the cost film badges can be shared with other members of the dental facility.

A)Both statements are true.
B)Both statements are false.
C)First statement is true,second is false.
D)First statement is false,second is true.

Question 15

The maximum permissible dose for a pregnant dental professional should not exceed:

A)0.3.mSv per month during pregnancy.
B)0.4.mSv per month during pregnancy.
C)0.5 mSv per month during pregnancy.
D)0.6 mSv per month during pregnancy.

Question 16

Federal and state regulations require that every x-ray machine be equipped with an activated exposure switch that allows the operator to properly position themselves 3 feet away from the source of radiation.