| A | B |
|---|
| what types of cells are most easily destroyed or altered | blood-forming cells |
| a collimator is used for | reduce the size of the primary beam |
| what do letters ALARA mean | as low as reasonably achievable |
| what kind of radiation exposure causes damage slowly over time before effects are noticed | cumulative |
| the use of the thyroid collar is contraindicated when exposing | panoramic radiographs |
| if the dental assistant suspects the x-ray machine is malfunctioning, what action should be taken | immediately stop exposure and notify the dentist |
| the ADA guidelines recommend that radiographs should be taken how often | as necessary |
| what is another name for secondary radiation | scatter |
| eliminates unecessary radiation exposure by reducing retakes of radiographs | optimum film processing |
| erythema, nausea, diarrhea, hemmorhage and loss of hair are symptoms seen with | short term effects of radiation |
| this component of the tube head helps to reduce x-ray exposure | metal housing |
| this results in the least radiation exposure to the patient | fast film speed and high kVp |
| coulumb per kilogram (C/Kg) is equivalent to which unit of exposure that is used in the U.S. | roentgen (R) |
| what is used to determine the amount of radiation exposure an operator has received | dosimeter badge |
| the time frame between exposure to radiation and biologic effects | latent period |
| maximum dosage of radiation for a dental assistant per year | 5 REMS |
| what is the best way to take periodical films on an uncooperative young child | parents hold film during exposure |
| when exposing radiographs the operator should stand | 6 ft away from the x-ray beam |
