Exam 7: Operator Protection

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.

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.

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

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.

Identify the true statement concerning film badges:

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

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

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.

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

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

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

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

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

Identify the true statement concerning film badges:

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